@article{e39c32ce58d0404b9ece49f19d079d93,
title = "Psychometric evaluation of the Muscle Dysmorphic Disorder Inventory (MDDI) among cisgender gay men and cisgender lesbian women",
abstract = "Despite increasing empirical interest in muscle dysmorphia (MD), a dearth of research has assessed this construct in sexual minority populations. In particular, the psychometric properties of one of the most widely used measures of MD symptoms—the Muscle Dysmorphic Disorder Inventory (MDDI)—have not been evaluated in sexual minority populations despite emerging evidence suggesting differential risk for MD symptoms across sexual orientation groups. In this study, we assessed the psychometric properties of the MDDI in a sample of 715 cisgender gay men and 404 cisgender lesbian women ages 18–50 years who participated in a large-scale national longitudinal cohort study of sexual and gender minority adults. The factor structure of the MDDI was examined in each sample using a two-step, split-sample exploratory and confirmatory factor analytic approach. Exploratory factor analysis supported a three-factor structure in both samples, which were confirmed by confirmatory factor analysis. Moreover, results supported the internal consistency reliability and convergent validity of the MDDI subscales in both samples. Cumulatively, these findings suggest that the MDDI is an appropriate measure of MD symptoms among cisgender gay men and cisgender lesbian women.",
keywords = "Gay, Lesbian, Muscle dysmorphia, Muscle dysmorphic disorder inventory, Sexual minority",
author = "Compte, {Emilio J.} and Cattle, {Chloe J.} and Lavender, {Jason M.} and Murray, {Stuart B.} and Brown, {Tiffany A.} and Capriotti, {Matthew R.} and Annesa Flentje and Lubensky, {Micah E.} and Juno Obedin-Maliver and Lunn, {Mitchell R.} and Nagata, {Jason M.}",
note = "Funding Information: MC was supported by a Clinical Research Training Fellowship from the American Academy of Neurology and the Tourette Association of America . SBM was supported by the National Institutes of Health ( K23 MH115184 ). JOM was partially supported by K12DK111028 from the National Institute of Diabetes, Digestive, and Kidney Disorders . AF was supported by the National Institute on Drug Abuse ( K23DA039800 ). Research reported in this article was partially funded through a Patient‐Centered Outcomes Research Institute ( www.pcori.org ; PPRN‐1501‐26848 ) to MRL. JN is supported by the American Heart Association Career Development Award ( CDA34760281 ) and was a participant in the Pediatric Scientist Development Program that was supported by the American Academy of Pediatrics and American Pediatric Society . The statements in this article are solely the responsibility of the authors and do not necessarily represent the views of Patient‐Centered Outcomes Research Institute, its Board of Governors or Methodology Committee, the Uniformed Services University, the Department of Defense, or the National Institutes of Health. Funding Information: MC was supported by a Clinical Research Training Fellowship from the American Academy of Neurology and the Tourette Association of America. SBM was supported by the National Institutes of Health (K23 MH115184). JOM was partially supported by K12DK111028 from the National Institute of Diabetes, Digestive, and Kidney Disorders. AF was supported by the National Institute on Drug Abuse (K23DA039800). Research reported in this article was partially funded through a Patient?Centered Outcomes Research Institute (www.pcori.org; PPRN?1501?26848) to MRL. JN is supported by the American Heart Association Career Development Award (CDA34760281) and was a participant in the Pediatric Scientist Development Program that was supported by the American Academy of Pediatrics and American Pediatric Society. The statements in this article are solely the responsibility of the authors and do not necessarily represent the views of Patient?Centered Outcomes Research Institute, its Board of Governors or Methodology Committee, the Uniformed Services University, the Department of Defense, or the National Institutes of Health. Publisher Copyright: {\textcopyright} 2021 The Author(s)",
year = "2021",
month = sep,
doi = "10.1016/j.bodyim.2021.04.008",
language = "English",
volume = "38",
pages = "241--250",
journal = "Body Image",
issn = "1740-1445",
}