TitleEcological momentary assessment of affect, stress, and binge-purge behaviors: day of week and time of day effects in the natural environment.
Publication TypeJournal Article
Year of Publication2009
AuthorsSmyth, JM, Wonderlich, SA, Sliwinski, MJ, Crosby, RD, Engel, SG, Mitchell, JE, Calogero, RM
JournalInt J Eat Disord
Date Published2009 Jul
KeywordsAdult, Affect, Bulimia Nervosa, Diagnostic and Statistical Manual of Mental Disorders, Female, Humans, Logistic Models, Periodicity, Severity of Illness Index, Social Environment, Stress, Psychological, Time Factors

<p><b>OBJECTIVE: </b>The present study examined ecological momentary assessments of binge/vomit behavior, mood, and type and severity of stressors in a sample of 133 women with bulimia nervosa.</p><p><b>METHOD: </b>Participants completed an ecological momentary assessment protocol for a period of 2 weeks.</p><p><b>RESULTS: </b>Mixed-effects and multilevel logistic models revealed significant variation across time of day and day of the week in the occurrence of binging, vomiting, positive and negative affect, and the severity and types of stressful events.</p><p><b>DISCUSSION: </b>These findings explicate how momentary and daily experiences vary in the natural environments of women with bulimia nervosa, and document critical time periods for intervention.</p>

Alternate JournalInt J Eat Disord
PubMed ID19115371
PubMed Central IDPMC2996234
Grant ListR01 MH059674 / MH / NIMH NIH HHS / United States
R01 MH059674-03 / MH / NIMH NIH HHS / United States
R13 MH081447 / MH / NIMH NIH HHS / United States
R34 MH077571 / MH / NIMH NIH HHS / United States