Results A four-item automaticity subscale ( the ‘ Self-Report Behavioural Automaticity Index ’ ; ‘ SRBAI ’ ) was found to be reliable and sensitive to two hypothesised effects of habit on behaviour : a habit-behaviour correlation , and a moderating effect of habit on the intention-behaviour relationship .
Conclusion The SRBAI offers a parsimonious measure that adequately captures habitual behaviour patterns .
The SRBAI may be of particular utility in predicting future behaviour and in studies tracking habit formation or disruption
Background The twelve-item Self-Report Habit Index ( SRHI ) is the most popular measure of energy-balance related habits .
This measure characterises habit by automatic activation , behavioural frequency , and relevance to self-identity .
Previous empirical research suggests that the SRHI may be abbreviated with no losses in reliability or predictive utility .
Drawing on recent theorising suggesting that automaticity is the ‘ active ingredient ’ of habit-behaviour relationships , we tested whether an automaticity-specific SRHI subscale could capture habit-based behaviour patterns in self-report data .
A family-based intervention to increase fruit and vegetable consumption in adolescents: a pilot study.
OBJECTIVE To evaluate the feasibility and effectiveness of a pilot family-based newsletter intervention to increase  fruit and vegetable ( FV ) consumption among adolescents . DESIGN Family-based , two-group r and omised control trial with baseline , post-intervention and follow-up measures . The intervention group received two FV newsletter packs over a 1 month period by postal mail . Social cognitive and behavioural choice theories provide the theoretical framework for the design and development of intervention material s. Control families were provided with all intervention material s at the end of the study . Adolescent FV consumption was assessed by an FFQ . Adolescent-reported barriers to eating FV , FV habits and preferences were the secondary outcomes , along with parent FV consumption , and parents reported knowledge , encouragement , home availability and accessibility of FV . Repeated- measures ANOVA was used to detect differences in behavioural and psychosocial outcomes between groups , time and group-by-time . SETTING East Midl and s , UK . SUBJECTS Forty-nine parents and adolescents aged 12 - 14 years . RESULTS Process evaluation indicated high reach , dose acceptability and fidelity of the intervention . At post-intervention and 6 weeks later at follow-up , adolescents in the intervention group had significantly higher fruit : ( P < 0.01 ) and vegetable ( P < 0.05 ) consumption and higher preferences for vegetables ( P < 0.01 ) , compared with the control group . At post-intervention and follow-up , parents in the intervention group had significantly higher fruit ( P < 0.001 ) and vegetable ( P < 0.01 ) consumption and reported higher accessibility of fruit and vegetables ( P < 0.001 ) , compared with those in the control group . CONCLUSIONS Family-based , newsletter interventions promoting FV consumption to adolescents appear to be feasible and effective at increasing FV consumption
Results A four-item automaticity subscale ( the ‘ Self-Report Behavioural Automaticity Index ’ ; ‘ SRBAI ’ ) was found to be reliable and sensitive to two hypothesised effects of habit on behaviour : a habit-behaviour correlation , and a moderating effect of habit on the intention-behaviour relationship .
Conclusion The SRBAI offers a parsimonious measure that adequately captures habitual behaviour patterns .
The SRBAI may be of particular utility in predicting future behaviour and in studies tracking habit formation or disruption
Background The twelve-item Self-Report Habit Index ( SRHI ) is the most popular measure of energy-balance related habits .
This measure characterises habit by automatic activation , behavioural frequency , and relevance to self-identity .
Previous empirical research suggests that the SRHI may be abbreviated with no losses in reliability or predictive utility .
Drawing on recent theorising suggesting that automaticity is the ‘ active ingredient ’ of habit-behaviour relationships , we tested whether an automaticity-specific SRHI subscale could capture habit-based behaviour patterns in self-report data .