caa a22 4500 475799461 CHVBK 20180406123733.0 cr unu---uuuuu 170329e20000101xx s 000 0 eng 10.1023/A:1002038610763 doi (NATIONALLICENCE)springer-10.1023/A:1002038610763 Physical Similarity and Twin Resemblance for Eating Attitudes and Behaviors: A Test of the Equal Environments Assumption [Elektronische Daten] [Kelly Klump, Amanda Holly, William Iacono, Matt McGue, Laura Willson] The Equal Environments Assumption (EEA) in twin studies of eating pathology was investigated by examining the hypothesis that twin resemblance for eating attitudes and behaviors is affected by their degree of physical similarity. Eating attitudes and behaviors were assessed in 338 female adolescent twin pairs with a revised version of the Eating Disorder Inventory (EDI). General physical similarity as well as body size/shape similarity were assessed using ratings of color photographs, ratings of body shape, and body mass index. All physical similarity assessments were conducted blind to twin zygosity. Significant associations between physical similarity and twin similarity for eating attitudes and behaviors were not found. Mean EDI within-twin pair absolute difference scores did not differ significantly among more versus less physically-similar groups. Additionally, correlation and regression analyses failed to find a significant association between EDI absolute difference scores and physical similarity indices. The current findings provide support for the EEA in twin studies of eating attitudes and behaviors. Plenum Publishing Corporation, 2000 Equal environments assumption nationallicence physical similarity nationallicence twin study nationallicence eating pathology nationallicence adolescent nationallicence Klump Kelly Department of Psychology, Michigan State University, East Lansing, Michigan aut Holly Amanda Department of Psychology, University of Minnesota, Minneapolis, Minnesota aut Iacono William Department of Psychology, University of Minnesota, Minneapolis, Minnesota aut McGue Matt Department of Psychology, University of Minnesota, Minneapolis, Minnesota aut Willson Laura Department of Psychology, University of Minnesota, Minneapolis, Minnesota aut Behavior Genetics Kluwer Academic Publishers-Plenum Publishers 30/1(2000-01-01), 51-58 0001-8244 30:1<51 2000 30 10519 https://doi.org/10.1023/A:1002038610763 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002038610763 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Klump Kelly Department of Psychology, Michigan State University, East Lansing, Michigan aut NATIONALLICENCE 700 1- Holly Amanda Department of Psychology, University of Minnesota, Minneapolis, Minnesota aut NATIONALLICENCE 700 1- Iacono William Department of Psychology, University of Minnesota, Minneapolis, Minnesota aut NATIONALLICENCE 700 1- McGue Matt Department of Psychology, University of Minnesota, Minneapolis, Minnesota aut NATIONALLICENCE 700 1- Willson Laura Department of Psychology, University of Minnesota, Minneapolis, Minnesota aut NATIONALLICENCE 773 0- Behavior Genetics Kluwer Academic Publishers-Plenum Publishers 30/1(2000-01-01), 51-58 0001-8244 30:1<51 2000 30 10519 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer