期刊
ANNALS OF BEHAVIORAL MEDICINE
卷 50, 期 4, 页码 516-522出版社
OXFORD UNIV PRESS INC
DOI: 10.1007/s12160-016-9776-x
关键词
Intention-behavior gap; Intraindividual and interindividual associations; Health behavior; Snack consumption; Ecological momentary assessment
Despite their good intentions, people often do not eat healthily. This is known as the intention-behavior gap. Although the intention-behavior relationship is theorized as a within-person process, most evidence is based on between-person differences. The purpose of the present study is to investigate the within-person intention-behavior association for unhealthy snack consumption. Young adults (N = 45) participated in an intensive longitudinal study. They reported intentions and snack consumption five times daily for 7 days (n = 1068 observations analyzed). A within-person unit difference in intentions was associated with a halving of the number of unhealthy snacks consumed in the following 3 h (CI95 27-70 %). Between-person differences in average intentions did not predict unhealthy snack consumption. Consistent with theory, the intention-behavior relation for healthy eating is best understood as a within-person process. Interventions to reduce unhealthy snacking should target times of day when intentions are weakest.
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