## 2 Literature Review and Development of Hypotheses
### The Impact of the Big Five Personality Characteristics on Decision Quality and Confidence
It is important to acknowledge that within the framework of the Big Five personality traits, agreeableness and openness are regarded as the least robust factors. This is primarily because of the presence of contradictions in their theoretical structure [66]. However, a strong correlation exists between higher levels of agreeableness and efficacy. Individuals revealing such traits tend to engage in behaviors that promote interpersonal attractiveness, facilitate transparent communication, and create cooperation. Therefore, these behaviors play a significant role in dispute resolution and have a positive impact on the overall functioning of a team [67]. The relationship between agreeableness and performance quality is not definitively established. While it is widely acknowledged that agreeableness can have a positive impact on interpersonal dynamics within teams, there is still a need for additional research to fully understand its effects on decision-making quality and individual task performance. In the context of individual tasks, it is reasonable to make the assumption below. **Hypothesis 2 a. **_A negative association between the agreeableness features and the quality of a decision._  
The trait of agreeableness is often linked to cooperative and sociable conduct; persons with higher levels of this feature are more inclined towards collaboration and interpersonal connections [63]. Although these attributes can enhance communication and conflict resolution within group dynamics, they may also impact individuals' levels of confidence in decision-making. According to existing research, persons who possess a high level of agreeableness may demonstrate a tendency towards \"tender-mindedness\", rendering them more sensitive to external influences and perhaps resulting in decision biases [68]. The presence of vulnerability has the potential to compromise the rationality of individuals' decision-making processes, hence diminishing their confidence in the outcomes of their choices. Additionally, the lack of team communication could lead to the decline of their trust in decision-making, as they frequently depend on external information [69]. Hence, while agreeableness may offer advantages in contexts that need collaboration, it can also lead to difficulties in terms of building trust in decision-making. Therefore, it can be hypothesized by the statement below. **Hypothesis 2 b. **_A negative association between the personality attribute agreeableness and the level of confidence in decision._  
Conscientiousness. Conscientiousness is a robust and established construct within the area of the development of personalities and the examination of individual differences [70]. This concept is a recognized method of managing impulsive behavior that promotes engagement in tasks and behaviors aligned with certain objectives. These include engaging in thoughtful actions, delaying immediate satisfaction, and adhering to established social norms [71]. Individuals who display conscientiousness attributes are commonly characterized by their self-discipline, organizational skills, and persistent effort. Conscientiousness is a strong predictor of job success in various professional domains, and it also demonstrates predictive power with other performance indicators [72; 73]. The existing studies support the notion that conscientiousness has a significant impact on the quality of decision-making, yielding beneficial outcomes [55]. Therefore, Hypothesis 3 (a) is proposed. **Hypothesis 3 a. **_A positive relation between the conscientiousness attribute and the quality of a decision._Individuals who possess a high level of conscientiousness frequently demonstrate a tendency to engage in deliberate processes when confronted with critical issues, highlighting their drive towards thorough examination. Previous studies have established a positive relationship between conscientiousness and confidence, namely in areas such as reading, writing, and time management abilities, which are separate from the process of decision-making.