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  • 标题:Construct Validation of the Portuguese Version of the Restraint Scale
  • 本地全文:下载
  • 作者:João Carvalho ; Marta M. Marques ; Mário Boto Ferreira
  • 期刊名称:Psychology, Community & Health
  • 印刷版ISSN:2182-438X
  • 出版年度:2016
  • 卷号:5
  • 期号:2
  • 页码:134-151
  • 语种:English
  • 出版社:PsychOpen
  • 摘要:Aim: The main purpose of this study was to adapt the Restraint Scale (RS) to Portuguese and examine its psychometric properties, specifically its construct validity. Method: In this study, 238 normal-weight adults (82% women; Mean age = 36.6, SD = 15.0) participated in an online survey containing measures of Restraint Scale, Three Factor Eating Questionnaire, Dutch Eating Behaviour Questionnaire, and Body Dissatisfaction and Drive for Thinness scales. Results: Exploratory factor analyses corroborated the two-factors structure found in previous studies, in particular when three items without clear factorial assignment and low correlation were excluded. A final two-factors version of the RS containing seven items presented a very good fit to the measurement model and good internal consistency. Confirmatory factor analysis of the 7-items RS in relation to a three-factor model of overeating, dieting and body dissatisfaction measures revealed that the RS was the only restraint measure loading in all three factors. Conclusion: This suggests that the 7-items Portuguese version of the RS has good psychometric properties and unique features that lend it appropriate to identify and study unsuccessful chronic dieters.
  • 关键词:restraint scale;construct validity;dieting;overeating;body dissatisfaction
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