The effect of implementation intentions on physical activity among obese older adults: A randomised control study

The objective of this study is to quantify situational impacts on coping compared to the impact of personal characteristics. A facet design was used to systematically vary three situational features (ambiguity, social context, and concern at stake) in twenty vignettes of stressful situations that were presented to a sample of 430 healthy persons to elicit coping responses. In addition, relevant personal characteristics (mental health, self-esteem, perceived social support, and dispositional coping styles) were assessed. A series of variance component analyses demonstrated that for eight types of coping behavior, variability within individuals across situations was larger than variability between individuals. Multilevel analyses, accounting for both the person level and the situation level in the data, were employed to identify the situational features and personal characteristics that were responsible for situation-related variance and person-related variance respectively. Results demonstrate that all three situational features proved significant contributors to differentiated situation-specific coping patterns. No single personal factor could be identified as relevant in shaping coping behaviors, although the combined impact of personal factors explained a considerable amount of variance at the personal level. It is concluded that the study of situational features is a promising way to understand in which way situations shape coping behavior, and may be helpful in guiding the development of coping scales tailored to specific situations.