bluuebunny/crossref_metadata_2025 huggingface dataset:
Potential behavioural indicators of post-operative pain in male laboratory rabbits following abdominal surgery
Authors: Farnworth MJ , Walker JK , Schweizer KA , Chuang C-L , Guild S-J , Barrett CJ , Leach MC , Waran NK
Published: January 2023

This study aimed to identify behaviours that could be used to assess post-operative pain and analgesic efficacy in male rabbits. In consideration of the ‘Three Rs’, behavioural data were collected on seven male New Zealand White rabbits in an ethically approved experiment requiring abdominal implantation of a telemetric device for purposes other than behavioural assessment. Prior to surgery, rabbits were anaesthetised using an isoflurane/oxygen mix and given Carprofen (2 mg kg−1) as a peri-operative analgesic. Rabbits were housed individually in standard laboratory cages throughout. Data were collected at three time periods: 24-21 h prior to surgery (T1) and, post-surgery, 0-3 h (T2) and 3-6 h (T3). Behavioural changes were identified using Observer XT, significance of which was assessed using a Friedman's test for several related samples. The frequency or duration of numerous pre-operative behaviours was significantly reduced in T2 and T3, as compared to T1. Conversely, novel or rare behaviours had either first occurrence or significant increase in T2 into T3 as compared to T1, these include ‘full-body-flexing’, ‘tight-huddling’, ‘hind-leg-shuffling’. We conclude that reduced expression of common pre-operative behaviours and the appearance of certain novel post-operative behaviours may be indicative of pain in rabbits. Behaviours identified as increased in T2 as compared to T1 but not consistently elevated into T3 were considered separately due to the potentially confounding effect of anaesthesia recovery. These included lateral lying, ‘drawing-back’, ‘staggering’ and ‘closed eyes’. We postulate that for effective application of best-practice post-operative care, informed behavioural observation can provide routes by which carers may identify requirements for additional post-operative analgesia. Additionally, improvement of the peri-operative pain management regimen may be required to ameliorate the immediate effects of abdominal surgery. Comparisons with other studies into post-operative pain expression in rabbits suggest behavioural indicators of pain may differ, depending on housing and surgical procedure.
Separating a horse from the social group for riding or training purposes: a descriptive study of human-horse interactions
Authors: Jørgensen GH Meisfjord , Fremstad KE , Mejdell CM , Bøe KE
Published: January 2023

The aim of this study was to investigate how difficult it was to halter and separate a horse(Equus caballus)from a group for riding or training purposes and to describe how human-horse interactions could affect this common procedure. A total of 20 different horse groups, with a minimum of five horses in each, were studied on 14 farms in Norway, from June to October 2007. On each farm, information about the facilities, the horse and the handler was recorded. In each group, the horse owner or keeper (handler) was asked to enter the group, approach his/her horse, halter it and lead it out through the gate, then keep the horse standing out of sight from other horses for two minutes. The entire procedure was video recorded and the behaviour of the target horse, handler and other horses was subsequently scored. Only one of the 100 horses moved away from the handler when approached. Ninety-six percent of the target horses followed their handler without showing any resistance. In 75% of the tests, the other horses did not interact with the target horse and/or handler. At the gate, 26% of the handlers did not turn the target horse around before closing the gate, thereby placing themselves in a vulnerable position, with their body in very close proximity to the horse's hind legs. In conclusion, separating a horse from its group can be considered relatively safe and unproblematic, provided good management practices and trained handlers.
Goldfish in a tank: the effect of substrate on foraging behaviour in aquarium fish
Authors: Smith A , Gray H
Published: January 2023

The welfare of captive animals is influenced by their ability to express natural behaviours. Foraging is one behaviour that may be particularly important in this respect; many species will continue to work for food even when it is freely available. The role of substrate, and in particular particle size, on the foraging behaviour of goldfish(Carassius auratus)was examined through three repeated measures experiments. In the first, tanks were set up with five uniform substrates: plastic grid, coarse sand, fine gravel, pebbles, and cobbles. In the second, fish were provided with a choice between coarse sand and fine gravel, fine gravel and pebbles, and pebbles and cobbles. In the third, they were provided with two choices between coarse sand and cobbles, one where the sand contained more food and one where the cobbles did. Our results show that particle size significantly affected the amount of time goldfish spent foraging, and that goldfish exhibited foraging behaviour even in the absence of a substrate they can manipulate. Goldfish foraged longest when provided with coarse sand. Fish foraged significantly longer over smaller particle size substrates when given a choice, although they did not distinguish between the two finest substrates, coarse sand and gravel. Increases in total time spent foraging were achieved through more, rather than longer, bouts. Food density did not significantly alter preference for smaller particle substrates. In general, coarse sand (1.5 mm) was found to be the most appropriate substrate in terms of facilitating natural foraging behaviours. These findings are discussed with respect to the welfare and husbandry of goldfish and aquarium fish in general.
Canopy cover is correlated with reduced injurious feather pecking in commercial flocks of free-range laying hens
Authors: Brigh A , Brass D , Clachan J , Drake KA , Joret AD
Published: January 2023

Injurious feather pecking in non-cage systems is a serious economic and welfare concern for the egg-producing industry. Here, we describe the first results from an ongoing collaborative project to improve range environment and welfare of laying hens(Gallus gallus domesticus)within the McDonald's Restaurants Ltd, UK supply base. The objective of this study was to investigate, in a commercial situation, the correlation between: i) proportion of range cover and ii) proportion of canopy cover, with plumage damage of end-of-lay hens. The assessment of plumage damage due to injurious feather pecking is a key animal-based welfare indicator for laying hens in non-cage systems. In 2007 and 2008, all laying-hen producers within the McDonald's Restaurants Ltd egg-supply base, were required to plant (if not present already), 5% of the total range area with blocks of trees ether side, and between 20-25 m from the laying hen house. Plumage damage at end of lay was positively correlated with mortality and flocks depleted in summer had less plumage damage at end of lay than flocks depleted in autumn or winter, possibly because of weather conditions at the time of placement. There was no correlation between the proportion (5-90%) of range cover and plumage damage at the end of lay, however, plumage damage was negatively correlated with percent of canopy cover within tree-planted areas. Providing a minimum of 5% tree cover, planted close to the house but with good canopy coverage, may be a feasible and practical method enabling producers to reduce plumage damage due to injurious feather pecking in their laying-hen flocks. Tree cover provision may also provide environmental benefits, such as soil stabilisation, reduced nutrient leaching and carbon sequestration.
Environmental enrichment for captive Eastern blue-tongue lizards (Tiliqua scincoides)
Authors: Phillips CJC , Jiang Z , Hatton AJ , Tribe A , Le Bouar M , Guerlin M , Murray PJ
Published: January 2023

Eastern blue-tongue lizards (Tiliqua scincoides) are kept in zoos and increasingly commonly as exotic pets, but little is known about improving their welfare by enrichment of their environment. Using nine animals kept individually in cages provided with a brick for basking and a pipe for hiding, we initially investigated enriching their environment with mealworms, either scattered on the floor or inserted into a foodball. The mealworms increased the time that the lizards spent feeding on both their ration and the mealworms and increased liveweight gain. Scattering the mealworms on the floor of their cages increased the time taken to eat them, compared with taking them from the foodball. Mealworms also reduced the time that the lizards spent hiding. Second, using eight individually housed lizards and replacing the pipe with a log which could be used both for basking and hiding, we investigated whether increasing the size of their enclosure and its temperature affected their behaviour, in a two-factor changeover design with two-week periods. When lizards were moved from small to large enclosures, they greatly increased the time that they spent walking on the first day, and they walked longer and further for the rest of the period. Lizards in big enclosures also spent more time hiding in the log and less time inactive on the log or the brick. Lizards in hot enclosures spent more time basking on the log and less time hiding in it, which would be valuable for display animals. The benefit of enriching the captive environment of Eastern blue-tongue lizards by scattering mealworms in their cage may depend on the effect on the lizards’ weight and the cage's conditions, as captive lizards often become obese, and inactivity and weight loss are normal in their natural habitat during the dry season. Increasing the size of enclosures increases walking activity and reduces weight gain, which similarly will have variable effects on welfare depending on the impact on their bodyweight. Lizards in large enclosures have an increased propensity to hide so it is important that opportunities for this are provided.
Development and testing of a novel instrument to measure health-related quality of life (HRQL) of farmed pigs and promote welfare enhancement (Part 1)
Authors: Wiseman-Orr ML , Scott EM , Nolan AM
Published: January 2023

Health-related quality of life (HRQL) was defined for farmed animals and identified as an appropriate focus of integrative welfare measurement for farmed pigs that embraces measurement of positive welfare. The instrument for HRQL measurement was developed specifically for use by farmers and stockpersons, the prime carers of pigs, to increase ownership of welfare improvement amongst those groups. Using a psychometric approach to instrument development, relevant observations were determined by consultation with experienced farmers and stockpersons. These observations included causal variables (cause changes in HRQL) and indicator variables (manifest changes in HRQL). The variables selected as items in the structured questionnaire instrument were those most commonly applied by farmers and stockpersons and also were assigned similar quality-of-life impact by a range of experts including pig veterinary specialists and welfare scientists. The prototype instrument comprises a questionnaire with 98 causal variable items (covering five domains of welfare according with the Five Freedoms) and 30 indicator variable items. It was pre-tested with farmers and stockpersons on commercial farm units and was found to have content (face) validity and high utility. This tool is a novel measure of HRQL in farmed pigs that encompasses the measurement of positive welfare and promotes a move from welfare assurance to welfare enhancement. Further validation of the instrument is described in a companion paper in this issue.
A Class Functionalist Theory of Race
Authors: Calnitsky David , Billeaux Martinez Michael
Published: January 2023

This article makes a case for weak class reductionism. In particular, we advance a theoretical account that largely “reduces” a social construct called race to another social construct called class. Once you acknowledge that race is not itself a prime mover, but rather something to be explained, class as an explanans turns out to be a strong candidate. Before making this case, we distinguish our account from three alternative forms of class reductionism, which we reject: the notions that (1) class is a more fundamental form of identity than race; (2) class is of greater normative importance than race; and (3) race is an epiphenomenon of class, without independent effects. We then argue for one form of class reduction that establishes race as causally dependent on class. In particular, we provide a general defense of functional explanations, argue that capitalist class relations can functionally explain the persistence of race, and finally, delineate the limits of that explanation. Because the nature of functional explanation requires the explanandum to have important effects in the world, this argument puts race at the center of any discussion of capitalist class relations in racialized societies and explains it on the basis of its effects rather than its causes. Nonetheless, as we show in our conclusion, none of these arguments imply that race or racism is inherent to capitalist class relations. Racism may be explained by capitalism, even if it is not necessary for it.
One-reason decision making in risky choice? A closer look at the priority heuristic
Authors: Hilbig Benjamin E.
Published: January 2023

Although many models for risky choices between gambles assume that information is somehow integrated, the recently proposed priority heuristic (PH) claims that choices are based on one piece of information only. That is, although the current reason for a choice according to the PH can vary, all other reasons are claimed to be ignored. However, the choices predicted by the PH and other pieces of information are often confounded, thus rendering critical tests of whether decisions are actually based on one reason only, impossible. The current study aims to remedy this problem by manipulating the number of reasons additionally in line with the choice implied by the PH. The results show that participants’ choices and decision times depend heavily on the number of reasons in line with the PH — thus contradicting the notion of non-compensatory, one-reason decision making.
Debiasing context effects in strategic decisions: Playing against a consistent opponent can correct perceptual but not reinforcement biases
Authors: Vlaev Ivo , Chater Nick
Published: January 2023

Vlaev and Chater (2006) demonstrated that the cooperativeness of previously seen prisoner’s dilemma games biases choices and predictions in the current game. These effects were: a) assimilation to the mean cooperativeness of the played games caused by action reinforcement, and b) perceptual contrast with the preceding games depending on the range and the rank order of their cooperativeness. We demonstrate that, when playing against choice strategies that are not biased by such factors, perceptual biases disappear and only assimilation bias caused by reinforcement persists. This suggests that reinforcement learning is a powerful source of inconsistency in strategic interaction, which may not be eliminated even if the other players are unbiased and the markets are efficient.
Possession, feelings of ownership and the endowment effect
Authors: Reb Jochen , Connolly Terry
Published: January 2023

Research in judgment and decision making generally ignores the distinction between factual and subjective feelings of ownership, tacitly assuming that the two correspond closely. The present research suggests that this assumption might be usefully reexamined. In two experiments on the endowment effect we examine the role of subjective ownership by independently manipulating factual ownership (i.e., what participants were told about ownership) and physical possession of an object. This allowed us to disentangle the effects of these two factors, which are typically confounded. We found a significant effect of possession, but not of factual ownership, on monetary valuation of the object. Moreover, this effect was mediated by participants’ feelings of ownership, which were enhanced by the physical possession of the object. Thus, the endowment effect did not rely on factual ownership per se but was the result of subjective feelings of ownership induced by possession of the object. It is these feelings of ownership that appeared to lead individuals to include the object into their endowment and to shift their reference point accordingly. Potential implications and directions for future research are discussed.
Affect, risk perception and future optimism after the tsunami disaster
Authors: Västfjäll Daniel , Peters Ellen , Slovic Paul
Published: January 2023

Environmental events such as natural disasters may influence the public's affective reactions and decisions. Shortly after the 2004 Tsunami disaster we assessed how affect elicited by thinking about this disaster influenced risk perceptions and future time perspective in Swedish undergraduates not directly affected by the disaster. An experimental manipulation was used to increase the salience of affect associated with the disaster. In Study 1 we found that participants reminded about the tsunami had a sense that their life was more finite and included fewer opportunities than participants in the control condition (not reminded about the tsunami). In Study 2 we found similar effects for risk perceptions. In addition, we showed that manipulations of ease-of-thought influenced the extent to which affect influenced these risk perceptions, with greater ease of thoughts being associated with greater perceived risks.
The use of mixed models in a modified Iowa Gambling Task and a prisoner's dilemma game
Authors: Stockard Jean , O'Brien Robert M. , Peters Ellen
Published: January 2023

Researchers in the decision making tradition usually analyze multiple decisions within experiments by aggregating choices across individuals and using the individual subject as the unit of analysis. This approach can mask important variations and patterns within the data. Specifically, it ignores variations in decisions across a task or game and possible influences of characteristics of the subject or the experiment on these variations. We demonstrate, by reanalyzing data from two previously published articles, how a mixed model analysis addresses these limitations. Our results, with a modified Iowa gambling task and a prisoner's dilemma game, illustrate the ways in which such an analysis can test hypotheses not possible with other techniques, is more parsimonious, and is more likely to be faithful to theoretical models.
A Domain-Specific Risk-Taking (DOSPERT) scale for adult populations
Authors: Blais Ann-Renée , Weber Elke U.
Published: January 2023

This paper proposes a revised version of the original Domain-Specific Risk-Taking (DOSPERT) scale developed by Weber, Blais, and Betz (2002) that is shorter and applicable to a {broader range of ages, cultures, and educational levels}. It also provides a French translation of the revised scale. Using multilevel modeling, we investigated the risk-return relationship between apparent risk taking and risk perception in 5 risk domains. The results replicate previously noted differences in reported degree of risk taking and risk perception at the mean level of analysis. The multilevel modeling shows, more interestingly, that within-participants variation in risk taking across the 5 content domains of the scale was about 7 times as large as between-participants variation. We discuss the implications of our findings in terms of the person-situation debate related to risk attitude as a stable trait.
Are maximizers really unhappy? The measurement of maximizing tendency
Authors: Diab Dalia L. , Gillespie Michael A. , Highhouse Scott
Published: January 2023

Recent research suggesting that people who maximize are less happy than those who satisfice has received considerable fanfare. The current study investigates whether this conclusion reflects the construct itself or rather how it is measured. We developed an alternative measure of maximizing tendency that is theory-based, has good psychometric properties, and predicts behavioral outcomes. In contrast to the existing maximization measure, our new measure did not correlate with life (dis)satisfaction, nor with most maladaptive personality and decision-making traits. We conclude that the interpretation of maximizers as unhappy may be due to poor measurement of the construct. We present a more reliable and valid measure for future researchers to use.
Speakers' choice of frame in binary choice: Effects of recommendation mode and option attractiveness
Authors: Buiten Marc van , Keren Gideon
Published: January 2023

A distinction is proposed betweenrecommending forpreferred choice options andrecommending againstnon-preferred choice options. In binary choice, both recommendation modes are logically, though not psychologically, equivalent. We report empirical evidence showing that speakers recommending for preferred options predominantly select positive frames, which are less common when speakers recommend against non-preferred options. In addition, option attractiveness is shown to affect speakers’ choice of frame, and adoption of recommendation mode. The results are interpreted in terms of three compatibility effects, (i)recommendation mode—valence framing compatibility: speakers’ preference for positive framing is enhanced underrecommending forand diminished underrecommending againstinstructions, (ii)option attractiveness—valence framing compatibility: speakers’ preference for positive framing is more pronounced for attractive than for unattractive options, and (iii)recommendation mode—option attractiveness compatibility: speakers are more likely to adopt arecommending forapproach for attractive than for unattractive binary choice pairs.
Psychophysics and the judgment of price: Judging complex objects on a non-physical dimension elicits sequential effects like those in perceptual tasks
Authors: Matthews William J. , Stewart Neil
Published: January 2023

When participants in psychophysical experiments are asked to estimate or identify stimuli which differ on a single physical dimension, their judgments are influenced by the local experimental context — the item presented and judgment made on the previous trial. It has been suggested that similar sequential effects occur in more naturalistic, real-world judgments. In three experiments we asked participants to judge the prices of a sequence of items. In Experiment 1, judgments were biased towards the previous response (assimilation) but away from the true value of the previous item (contrast), a pattern which matches that found in psychophysical research. In Experiments 2A and 2B, we manipulated the provision of feedback and the expertise of the participants, and found that feedback reduced the effect of the previous judgment and shifted the effect of the previous item's true price from contrast to assimilation. Finally, in all three experiments we found that judgments were biased towards the centre of the range, a phenomenon known as the “regression effect” in psychophysics. These results suggest that the most recently-presented item is a point of reference for the current judgment. The findings inform our understanding of the judgment process, constrain the explanations for local context effects put forward by psychophysicists, and carry practical importance for real-world situations in which contextual bias may degrade the accuracy of judgments.
Causal explanations affect judgments of the need for psychological treatment
Authors: Kim Nancy S. , LoSavio Stefanie T.
Published: January 2023

Knowing what event precipitated a client's abnormal behaviors makes the client appear more normal than if the event is not known (Meehl, 1973). Does such knowledge also influence judgments of the need for psychological treatment, and if so, does it matter whether the precipitating event was inside or outside the client's control? We presented undergraduates with cases of hypothetical clients exhibiting abnormal behaviors and manipulated whether they were also told of a precipitating event explaining those behaviors. Knowing the precipitant significantly reduced perceptions of clients’ need for treatment, but only when the precipitating event was outside the client's control. These findings call into question the notion that it need always be beneficial for an outside reasoner to uncover the root cause of a client's psychological problems, particularly when the root cause is still unknown to the client. The rationality of the effect and additional implications for decision-making are discussed.
Gambler’s fallacy, hot hand belief, and the time of patterns
Authors: Sun Yanlong , Wang Hongbin
Published: January 2023

The gambler’s fallacy and the hot hand belief have been classified as two exemplars of human misperceptions of random sequential events. This article examines the times of pattern occurrences where a fair or biased coin is tossed repeatedly. We demonstrate that, due to different pattern composition, two different statistics (mean time and waiting time) can arise from the same independent Bernoulli trials. When the coin is fair, the mean time is equal for all patterns of the same length but the waiting time is the longest for streak patterns. When the coin is biased, both mean time and waiting time change more rapidly with the probability of heads for a streak pattern than for a non-streak pattern. These facts might provide a new insight for understanding why people view streak patterns as rare and remarkable. The statistics of waiting time may not justify the prediction by the gambler’s fallacy, but paying attention to streaks in the hot hand belief appears to be meaningful in detecting the changes in the underlying process.
Attribute salience in graphical representations affects
evaluation
Authors: Sun Yan , Li Shu , Bonini Nicolao
Published: January 2023

By manipulating the scale in graphs, this study demonstrated a new
evaluation bias caused by attribute salience in graphical representations.
That is, (de)compressing the graph axis scale changed the relative distance
with respect to the options of a given attribute and thus changed the
salience of the information in graphical representations. Experiment 1
showed that the differences in the graphical representations had a
significant impact on the evaluation. Experiment 2 repeated the scale
manipulation effect in a different scenario and extended it to a
multi-options context. Experiment 3 disentangled the effect of scale
distance manipulation from the other variables (e.g., scale resolution and
assignment of attributes to axes) and further supported the finding of
Experiment 1. These results indicated that attribute salience in graphical
representations clearly affects evaluations and that graphs can be
manipulated to cause very different impressions of the same data. This
finding is not consistent with the axioms of normative economic theory.
Experiment 3 also tested the attribute importance hypothesis, but the
evidence indicated that the participants did not regard the longer axis as
the more important attribute. Finally, we related our findings to the impact
of visual processing on decision making and discussed them from the
perspective of two-system cognitive theory.
Ability, chance, and ambiguity aversion: Revisiting the competence
hypothesis
Authors: Klein William M. P. , Cerully Jennifer L. , Monin Matthew M. , Moore Don A.
Published: January 2023

Individuals are often ambiguity-averse when choosing among purely
chance-based prospects (Ellsberg, 1961). However, they often prefer
apparently ambiguous ability-based prospects to
unambiguous chance-based prospects. According to the competence hypothesis
(Heath & Tversky, 1991), this pattern derives from favorable perceptions
of one’s competence. In most past tests of the competence hypothesis,
ambiguity is confounded with personal controllability and the source of the
ambiguity (e.g., chance vs. missing information). We unconfound these
factors in three experiments and find strong evidence for independent
effects of both ambiguity aversion and competence. In Experiment 1,
participants preferred an unambiguous chance-based option to an ambiguous
ability-based option when the ambiguity derived from chance rather than
uncertainty about one’s own ability. In Experiments 2 and 3, which used
different operationalizations of ambiguity in choice contexts with actual
consequences, participants attempted to avoid both ambiguity and chance
insofar as they could. These findings support and extend the competence
hypothesis by demonstrating ambiguity aversion independent of personal
controllability and source of ambiguity.
Are within-subjects designs transparent?
Authors: Lambdin Charles , Shaffer Victoria A.
Published: January 2023

Researchers frequently argue that within-subjects designs should be
avoided because they result in research hypotheses that are transparent to
the subjects in the study. This conjecture was empirically tested by
replicating several classic between-subjects experiments as within-subjects
designs. In two additional experiments, psychology students were given the
within-subjects versions of these studies and asked to guess what the
researcher was hoping to find (i.e. the research hypothesis), and members of
the Society for Judgment and Decision Making (SJDM) were asked to predict
how well students would perform this task. On the whole, students were
unable to identify the research hypothesis when provided with the
within-subjects version of the experiments. Furthermore, SJDM members were
largely inaccurate in their predictions of the transparency of a
within-subjects design.
Methodological pitfalls of the Unconscious Thought paradigm
Authors: Waroquier Laurent , Marchiori David , Klein Olivier , Cleeremans Axel
Published: January 2023

According to Unconscious Thought Theory (UTT: Dijksterhuis &
Nordgren, 2006), complex decisions are best made after a period of
distraction assumed to elicit “unconscious thought”. Over three studies,
respectively offering a conceptual, an identical and a methodologically
improved replication of Dijksterhuis et al. (2006), we reassessed UTT’s
predictions and dissected the decision task used to demonstrate these
predictions. We failed to find any evidence for the benefits of unconscious
decision-making. By contrast, we found some evidence that conscious
deliberation can lead to better decisions. Further, we identified
methodological weaknesses in the UTT decision task: (a) attributes weighting
was neglected although attributes were seen as different in importance; (b)
the material was not properly counterbalanced; and (c) there was some
confusion in the experimental instructions. We propose methodological
improvements that address these concerns.
Information search and information distortion in the diagnosis of an ambiguous presentation
Authors: Kostopoulou Olga , Mousoulis Christos , Delaney Brendan
Published: January 2023

Physicians often encounter diagnostic problems with ambiguous and conflicting features. What are they likely to do in such situations? We presented a diagnostic scenario to 84 family physicians and traced their information gathering, diagnoses and management. The scenario contained an ambiguous feature, while the other features supported either a cardiac or a musculoskeletal diagnosis. Due to the risk of death, the cardiac diagnosis should be considered and managed appropriately. Forty-seven participants (56%) gave only a musculoskeletal diagnosis and 45 of them managed the patient inappropriately (sent him home with painkillers). They elicited less information and spent less time on the scenario than those who diagnosed a cardiac cause. No feedback was provided to participants. Stimulated recall with 52 of the physicians revealed differences in the way that the same information was interpreted as a function of the final diagnosis. The musculoskeletal group denigrated important cues, making them coherent with their representation of a pulled muscle, whilst the cardiac group saw them as evidence for a cardiac problem. Most physicians indicated that they were fairly or very certain about their diagnosis. The observed behaviours can be described as coherence-based reasoning, whereby an emerging judgment influences the evaluation of incoming information, so that confident judgments can be achieved even with ambiguous, uncertain and conflicting information. The role of coherence-based reasoning in medical diagnosis and diagnostic error needs to be systematically examined.
Preferring balanced vs. advantageous peace agreements: A study of Israeli attitudes towards a two state solution
Authors: Malhotra Deepak , Ginges Jeremy
Published: January 2023

The paper extends research on fixed-pie perceptions by suggesting that disputants may prefer proposals that are perceived to be equally attractive to both parties (i.e., balanced) rather than one-sided, because balanced agreements are seen as more likely to be successfully implemented. We test our predictions using data on Israeli support for the Geneva Accords, an agreement for a two state solution negotiated by unofficial delegations of Israel and the Palestinian Authority in 2003. The results demonstrate that Israelis are more likely to support agreements that are seen favorably by other Israelis, but — contrary to fixed-pie predictions — Israeli support for the accords does not diminish simply because a majority of Palestinians favors (rather than opposes) the accords. We show that implementation concerns create a demand among Israelis for balance in the degree to which each side favors (or opposes) the agreement. The effect of balance is noteworthy in that it creates considerable support for proposals even when a majority of Israelis and Palestinians oppose the deal.
Risk, uncertainty and prophet: The psychological insights of Frank H. Knight
Authors: Rakow Tim
Published: January 2023

Economist Frank H. Knight (1885–1972) is commonly credited with defining the distinction between decisions under “risk” (known chance) and decisions under “uncertainty” (unmeasurable probability) in his 1921 bookRisk, Uncertainty and Profit. A closer reading of Knight (1921) reveals a host of psychological insights beyond this risk-uncertainty distinction, many of which foreshadow revolutionary advances in psychological decision theory from the latter half of the 20thcentury. Knight’s description of economic decision making shared much with Simon’s (1955, 1956) notion of bounded rationality, whereby choice behavior is regulated by cognitive and environmental constraints. Knight described features of risky choice that were to become key components of prospect theory (Kahneman & Tversky, 1979): the reference dependent valuation of outcomes, and the non-linear weighting of probabilities. Knight also discussed several biases in human decision making, and pointed to two systems of reasoning: one quick, intuitive but error prone, and a slower, more deliberate, rule-based system. A discussion of Knight’s potential contribution to psychological decision theory emphasises the importance of a historical perspective on theory development, and the potential value of sourcing ideas from other disciplines or from earlier periods of time.
The beauty of simple models: Themes in recognition heuristic research
Authors: Goldstein Daniel G. , Gigerenzer Gerd
Published: January 2023

The advantage of models that do not use flexible parameters is that one can precisely show to what degree they predict behavior, and in what situations. In three issues of this journal, the recognition heuristic has been examined carefully from many points of view. We comment here on four themes, the use of optimization models to understand the rationality of heuristics, the generalization of the recognition input beyond a binary judgment, new conditions for less-is-more effects, and the importance of specifying boundary conditions for cognitive heuristics.
The Decision Making Individual Differences Inventory and guidelines for the study of individual differences in judgment and decision-making research
Authors: Appelt Kirstin C. , Milch Kerry F. , Handgraaf Michel J. J. , Weber Elke U.
Published: January 2023

Individual differences in decision making are a topic of longstanding interest, but often yield inconsistent and contradictory results. After providing an overview of individual difference measures that have commonly been used in judgment and decision-making (JDM) research, we suggest that our understanding of individual difference effects in JDM may be improved by amending our approach to studying them. We propose four recommendations for improving the pursuit of individual differences in JDM research: a more systematic approach; more theory-driven selection of measures; a reduced emphasis on main effects in favor of interactions between individual differences and decision features, situational factors, and other individual differences; and more extensive communication of results (whether significant or null, published or unpublished). As a first step, we offer our database—the Decision Making Individual Differences Inventory (DMIDI;http://html://www.sjdm.org/dmidi), a free, public resource that categorizes and describes the most common individual difference measures used in JDM research.
The psychology of moral reasoning
Authors: Bucciarelli Monica , Khemlani Sangeet , Johnson-Laird P. N.
Published: January 2023

This article presents a theory of reasoning about moral propositions that is based on four fundamental principles. First, no simple criterion picks out propositions about morality from within the larger set of deontic propositions concerning what is permissible and impermissible in social relations, the law, games, and manners. Second, the mechanisms underlying emotions and deontic evaluations are independent and operate in parallel, and so some scenarios elicit emotions prior to moral evaluations, some elicit moral evaluations prior to emotions, and some elicit them at the same time. Third, deontic evaluations depend on inferences, either unconscious intuitions or conscious reasoning. Fourth, human beliefs about what is, and isn’t, moral are neither complete nor consistent. The article marshals the evidence, which includes new studies, corroborating these principles, and discusses the relations between them and other current theories of moral reasoning.
WTP and WTA in competitive and non-competitive environments
Authors: Shahrabani Shosh , Benzion Uri , Shavit Tal
Published: January 2023

Theoretical equivalence exists among various auction mechanisms, specifically the Second-Price-Auction (SPA), a competitive environment, and the BDM mechanism, a non-competitive environment. Yet, empirical studies suggest that behavior in these mechanisms may diverge. Our experimental study examines the WTP and the WTA of individuals by analyzing buying and selling bidding patterns both for a physical product (mugs) and for two types of lotteries (regular lotteries and extreme lotteries) in these two auctions mechanism: SPA and BDM. We found that the WTP in the SPA is higher than the WTP in the BDM for mugs and for regular lotteries, while the mechanisms do not differ significantly for extreme lotteries. In addition, the WTA in the SPA is lower than in the BDM for regular lotteries only. These results indicate that the WTP and WTA, as well as the WTA-WTP gap, tend to differ in the SPA and in the BDM as a result of the interaction between the competitiveness effect and other psychological effects on bidding patterns for riskless and risky assets. In addition, the current study suggests that the competitiveness effect depends not only on the type of mechanism (SPA), but also on the type of item (physical assets or lotteries) and the type of lottery. In addition, the influence of the competitiveness effect may vary between buying and selling positions.
Perceived time pressure and the Iowa Gambling Task
Authors: DeDonno Michael A. , Demaree Heath A.
Published: January 2023

The purpose of the present study was to investigate the effect of perceived time pressure on a learning-based task called the Iowa Gambling Task (IGT). One hundred and sixty-three participants were randomly assigned to one of two groups. The experimental group was informed that the time allotted was typically insufficient to learn and successfully complete the task. The control group was informed that the time allotted was typically sufficient to learn and successfully complete the task. Both groups completed the IGT and performance was recorded. The major finding was that participants who were advised that the amount of time allotted was typically insufficient to complete the task performed significantly worse than those who were advised that time was typically sufficient to complete the task.
Sacred values and conflict over Iran’s nuclear program
Authors: Dehghani Morteza , Atran Scott , Iliev Rumen , Sachdeva Sonya , Medin Douglas , Ginges Jeremy
Published: January 2023

Conflict over Iran’s nuclear program, which involves a US-led policy to impose sanctions on Iran, is perceived by each side as a preeminent challenge to its own national security and global peace. Yet, there is little scientific study or understanding of how material incentives and disincentives, such as economic sanctions, psychologically affect the targeted population and potentially influence behaviour. Here we explore the Iranian nuclear program within a paradigm concerned with sacred values. We integrate experiments within a survey of 1997 Iranians. We find that a relatively small but politically significant portion of the Iranian population believes that acquiring nuclear energy has become a sacred value, in the sense that proposed economic incentives and disincentives result in a “backfire effect” in which offers of material rewards or punishment lead to increased anger and greater disapproval. This pattern was specific to nuclear energy and did not hold for acquiring nuclear weapons. The present study is the first demonstration of the backfire effect for material disincentives as well as incentives, and on an issue whose apparent sacred nature is recent rather than longstanding.
Wording effects in moral judgments
Authors: O’Hara Ross E. , Sinnott-Armstrong Walter , Sinnott-Armstrong Nicholas A.
Published: January 2023

As the study of moral judgments grows, it becomes imperative to compare results across studies in order to create unified theories within the field. These efforts are potentially undermined, however, by variations in wording used by different researchers. The current study sought to determine whether, when, and how variations in wording influence moral judgments. Online participants responded to 15 different moral vignettes (e.g., the trolley problem) using 1 of 4 adjectives: “wrong”, “inappropriate”, “forbidden”, or “blameworthy”. For half of the sample, these adjectives were preceded by the adverb “morally”. Results indicated that people were more apt to judge an act as wrong or inappropriate than forbidden or blameworthy, and that disgusting acts were rated as more acceptable when “morally” was included. Although some wording differences emerged, effects sizes were small and suggest that studies of moral judgment with different wordings can legitimately be compared.
A study of fairness judgments in China, Switzerland and Canada: Do culture, being a student, and gender matter?
Authors: Gao Yue
Published: January 2023

This study compares judgments of the fairness of economic actions among survey populations in Switzerland, and both student and non-student groups in the People’s Republic of China, with the earlier Kahneman, Knetsch and Thaler (1986a) surveys of Canadians. The findings suggest that fairness concerns matter among all of these groups, and the general patterns of what was and was not considered to be fair were similar. However, there were also some significant differences with the influence of fairness being weaker in the two Chinese samples than in the groups from the Western countries, with the influence being weakest in the Chinese student population for the wage related topics. On the whole, almost no significant gender differences were found in any of the new surveys.
Healthy choices in context: How contextual cues can influence the persuasiveness of framed health messages
Authors: McCormick Michael , McElroy Todd
Published: January 2023

Research has shown that framing messages in terms of benefits or detriments can have a substantial influence on intended behavior. For prevention behaviors, positively framed messages have been found to elicit stronger behavioral intentions than negatively framed messages. Research also seems to indicate that certain contextual features contribute to the persuasiveness of a message. In the present research we test how message framing, contextually presented affect and the number of argument factors interact and contribute to the persuasiveness of a health related message. Consistent with our hypothesis, we found that, in our prevention focused task, increasing the number of arguments increased behavioral intentions (BI) for positively framed messages when subjects were cued, via negative affect, to be attentive to the message. This resulted in a significant framing effect for messages with the maximum number of arguments and a negative background picture. An account of contextual influence in persuasive health messages is discussed.
The Maximization Inventory
Authors: Turner Brandon M. , Rim Hye Bin , Betz Nancy E. , Nygren Thomas E.
Published: January 2023

We present the Maximization Inventory, which consists of three separate scales: decision difficulty, alternative search, and satisficing. We show that the items of the Maximization Inventory have much better psychometric properties when compared to the original Maximization Scale (Schwartz et al., 2002). The satisficing scale is a new addition to the study of maximization behavior, and we demonstrate that this scale is positively correlated with positive adaptation, whereas the decision difficulty and alternative search scales are positively correlated with nonproductive decisional behavior. The Maximization Inventory was then compared to previous maximization scales and, while the decision difficulty and alternative search scales are positively correlated with similar previous constructs, the satisficing scale offers a dimension entirely different from maximization.
Two sides of the same coin: Information processing style and reverse biases
Authors: Ayal Shahar , Hochman Guy , Zakay Dan
Published: January 2023

This paper examines the effect of information processing styles (indexed by the Rational-Experiential Inventory of Pacini & Epstein, 1999) on adherence to bias judgments, and particularly to reverse biases; i.e., when two choice questions that comprise identical normative components are set in different situations and yield seemingly opposite behavioral biases. We found consistent evidence for a negative correlation between rational score and adherence to reverse biases, as well as overall biases, for all three pairs of reverse biases tested. Further, this effect of rational thinking was more pronounced for high experiential individuals, in that high-rational and high-experiential participants committed fewer biases than all other participants. These results lend weight to our claim that low-rational individuals, who are more sensitive to the context, are more prone to utilize some attribute of the provided information when it is uncalled for, but at the same time tend to ignore it or give it too little weight when it is a crucial factor in a normative decision process.