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In light of America\u2019s obesity epidemic, the present work examines message characteristics that may foster exposure to recommendations on healthful weight management. Drawing on social cognitive theory and exemplification theory, the present three-session 2\u00d72 experiment examined impacts of efficacy and exemplification, as characteristics of an online weight-loss message, on selective exposure and change in recommended behavior. Exposure depended on both characteristics, as the exemplar, high-efficacy version resulted in longest and the base-rate, high-efficacy version in shortest exposure, while both low-efficacy versions fell in between. Change in recommended behavior was positive and significantly higher in exemplar message groups than for base-rate version groups, where the change was negative.<\/jats:p>","DOI":"10.1177\/0093650213478440","type":"journal-article","created":{"date-parts":[[2013,3,7]],"date-time":"2013-03-07T21:50:29Z","timestamp":1362693029000},"page":"547-568","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":43,"title":["Impacts of Exemplification and Efficacy as Characteristics of an Online Weight-Loss Message on Selective Exposure and Subsequent Weight-Loss Behavior"],"prefix":"10.1177","volume":"42","author":[{"given":"Silvia","family":"Knobloch-Westerwick","sequence":"first","affiliation":[{"name":"The Ohio State University, Columbus, OH"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Melanie A.","family":"Sarge","sequence":"additional","affiliation":[{"name":"Texas Tech University, Lubbock, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2013,3,6]]},"reference":[{"key":"bibr1-0093650213478440","doi-asserted-by":"publisher","DOI":"10.1037\/0022-3514.35.5.303"},{"key":"bibr2-0093650213478440","doi-asserted-by":"publisher","DOI":"10.2307\/271083"},{"key":"bibr3-0093650213478440","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2458-9-313"},{"key":"bibr4-0093650213478440","doi-asserted-by":"publisher","DOI":"10.1037\/0033-295X.84.2.191"},{"key":"bibr5-0093650213478440","doi-asserted-by":"publisher","DOI":"10.1037\/0003-066X.37.2.122"},{"key":"bibr6-0093650213478440","volume-title":"Social foundations of thought and action: A social cognitive theory","author":"Bandura A.","year":"1986"},{"key":"bibr7-0093650213478440","first-page":"229","volume-title":"Neurobiology of learning, emotion and affect","author":"Bandura A.","year":"1991"},{"key":"bibr8-0093650213478440","doi-asserted-by":"publisher","DOI":"10.1207\/S1532785XMEP0303_03"},{"key":"bibr9-0093650213478440","doi-asserted-by":"publisher","DOI":"10.1177\/1090198104263660"},{"key":"bibr10-0093650213478440","first-page":"75","volume-title":"Entertainment-education and social change: History, research, and practice","author":"Bandura A.","year":"2004"},{"key":"bibr11-0093650213478440","doi-asserted-by":"publisher","DOI":"10.1037\/0022-3514.45.5.1017"},{"key":"bibr12-0093650213478440","doi-asserted-by":"publisher","DOI":"10.1080\/10410230701626885"},{"key":"bibr13-0093650213478440","doi-asserted-by":"publisher","DOI":"10.1007\/BF01184448"},{"key":"bibr14-0093650213478440","doi-asserted-by":"publisher","DOI":"10.4135\/9781412982818.n12"},{"key":"bibr15-0093650213478440","doi-asserted-by":"publisher","DOI":"10.1111\/j.1467-789X.2005.00170.x"},{"key":"bibr16-0093650213478440","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-277X.2011.01177_16.x"},{"key":"bibr17-0093650213478440","unstructured":"Federal Trade Commission. 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