RUNNING HEAD: MULTILEVEL STRUCTURE OF PANAS-C 1 Eadeh, H.-M., Breaux, R., Langberg, J. M., Nikolas, M., & Becker, S. P. (2019). Multigroup multilevel structure of the child and parent versions of the Positive and Negative Affect Schedule (PANAS) in adolescents with and without ADHD. Psychological Assessment. Advance online publication. doi:10.1037/pas0000796 Multigroup multilevel structure of the child and parent versions of the Positive and Negative Affect Schedule (PANAS) in adolescents with and without ADHD Hana-May Eadeh 1 Rosanna Breaux 2 Joshua M. Langberg 3 Molly A. Nikolas 1 Stephen P. Becker 4,5 1 Department of Psychological and Brain Sciences, University of Iowa, Iowa City, IA 2 Department of Psychology, Virginia Polytechnic Institute and State University, Blacksburg, VA 3 Department of Psychology, Virginia Commonwealth University, Richmond, VA 4 Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 5 Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH Correspondence concerning this article should be addressed to Hana-May Eadeh, Department of Psychological and Brain Sciences, W311 Seashore Hall, University of Iowa, Iowa City, IA 52242. E-mail: hana-may-eadeh@uiowa.edu Phone: 319-335-2406 Fax: 319-335-0191 Author note: The authors report no conflicts of interest. This research was supported by award number R305A160126 from the Institute of Education Sciences (IES), U.S. Department of Education. Stephen Becker is supported by award number K23MH108603 from the National Institute of Mental Health (NIMH). The content is solely the responsibility of the authors and does not necessarily represent the official views of the IES or the NIMH.