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Title: Psychometric properties and measurement invariance of the weight self-stigma questionnaire and weight bias internalization scale in children and adolescents
Authors: Pakpour, AH
Tsai, MC
Lin, YC
Strong, C
Latner, JD
Fung, XCC 
Lin, CY 
Tsang, HWH 
Keywords: Asia
Factorial invariance
Instrumental study
Weight stigma
Issue Date: 2019
Publisher: Elsevier
Source: International journal of clinical and health psychology, 2019, v. 19, no. 2, p. 150-159 How to cite?
Journal: International journal of clinical and health psychology 
Abstract: Background/Objective: Given the negative consequences of weight bias, including internalized weight stigma, on health outcomes, two instruments—the Weight Self-Stigma Questionnaire (WSSQ) and Weight Bias Internalization Scale (WBIS)—have been developed. However, their psychometric properties are yet to be tested for Asian pediatric populations.
Method:Participants aged 8 to 12 years (N = 287; 153 boys) completed the WSSQ and the WBIS, and they were classified into either a group with overweight or a group without overweight based on self-reported weight and height.
Results:Both WSSQ and WBIS had their factor structures supported by confirmatory factor analyses (CFAs). The measurement invariance of two-factor structure was further supported for WSSQ across gender and weight status. The measurement invariance of single-factor structure was supported for WBIS across gender but not across weight status.
Conclusions:WSSQ and WBIS were both valid to assess the internalization of weight bias. However, the two instruments demonstrated different properties and should be applied in different situations.
ISSN: 1697-2600
DOI: 10.1016/j.ijchp.2019.03.001
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