The independent effects of personality and situations on real-time expressions of behavior and emotion.

The joint influence of persons and situations on behavior has long been posited by personality and social psychological theory (Funder, 2006; Lewin, 1951). However, a lack of tools for real-time behavioral and situation assessment has left direct investigations of this sort immobilized. This study combines recent advances in situation assessment and experience sampling methodology to examine the simultaneous effects of personality traits and situation characteristics on real-time expressions of behavior and emotion in N = 210 participants. The results support an additive model such that both personality traits and situation characteristics independently predict real-time expressions of behavior and emotion. These results have implications for several prominent theoretical perspectives in personality, including both trait and cognitive theories.

Measuring the Evolutionarily Important Goals of Situations : Situational Affordances for Adaptive Problems.

According to the Fundamental Motives Framework, basic goals such as protecting oneself, forming coalitions, and avoiding disease have emerged as a result of evolutionary processes to enhance reproductive fitness. This article introduces the Situational Affordances for Adaptive Problems (SAAP), a measure of situation characteristics that promotes or prevents the achievement of these evolutionarily important goals. In Study 1, participants rated a recent situation they encountered using a preliminary version of the SAAP. Using factor analysis, the measure was reduced to 28 items. In Study 2, the factor structure was confirmed. Studies 3 and 4 evaluated the psychometric properties of the measure including its predictive validity. Future studies can use the SAAP to investigate differences in the everyday experience of these fundamental motives.