The Chinese version of the Functionality Appreciation Scale: Psychometric properties and measurement invariance across gender and age

Abstract Background Functionality appreciation, as an important aspect of positive image, is associated with fewer body image disturbances, fewer disordered eating behaviors, and improved psychological well-being. However, it has been under-researched in Asian countries. The current work aimed to ex...

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Main Authors: Jinbo He, Tianxiang Cui, Wesley R. Barnhart, Gui Chen
Format: Article
Language:English
Published: BMC 2023-06-01
Series:Journal of Eating Disorders
Subjects:
Online Access:https://doi.org/10.1186/s40337-023-00826-8
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author Jinbo He
Tianxiang Cui
Wesley R. Barnhart
Gui Chen
author_facet Jinbo He
Tianxiang Cui
Wesley R. Barnhart
Gui Chen
author_sort Jinbo He
collection DOAJ
description Abstract Background Functionality appreciation, as an important aspect of positive image, is associated with fewer body image disturbances, fewer disordered eating behaviors, and improved psychological well-being. However, it has been under-researched in Asian countries. The current work aimed to examine the psychometric properties of the Functionality Appreciation Scale (FAS) among four Chinese samples of different ages, and further examine measurement invariance and differences of the FAS across gender and age groups. Methods Exploratory and confirmatory factor analyses (EFA and CFA) were conducted to examine the factorial structure of the FAS among four Chinese samples of different ages, including middle school adolescents (n = 894, M age  = 12.17 years), high school adolescents (n = 1347, M age  = 15.07 years), young adults (n = 473, M age  = 21.95 years), and older adults (n = 313, M age  = 67.90 years). The measurement invariance of the FAS across gender and age was examined. Internal consistency reliability and construct validity were evaluated. Results The FAS had a unidimensional structure and was invariant across gender and age groups. The FAS presented sound psychometric properties in all age groups by gender, with good internal consistency reliability [e.g., high Cronbach’s α values (.91 ~ .97)] and good construct validity (e.g., significant associations with body appreciation, body dissatisfaction, and disordered eating). Moreover, group comparisons showed minimal gender differences in functionality appreciation. However, significant age differences were found in functionality appreciation, with older ages generally associated with higher functionality appreciation. Conclusion Overall, findings suggest that the FAS is a sound instrument to be used in the Chinese context. Furthermore, functionality appreciation was found to be higher in older adults than adolescents or young adults, suggesting the potential important role of aging in functionality appreciation.
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spelling doaj.art-9edcfd3d32bf447fad93efdc8129e1272023-06-25T11:03:33ZengBMCJournal of Eating Disorders2050-29742023-06-0111111710.1186/s40337-023-00826-8The Chinese version of the Functionality Appreciation Scale: Psychometric properties and measurement invariance across gender and ageJinbo He0Tianxiang Cui1Wesley R. Barnhart2Gui Chen3School of Humanities and Social Science, The Chinese University of Hong Kong, ShenzhenDepartment of Psychology, University of MacauDepartment of Psychology, Bowling Green State UniversityCollege of Educational Science, Hengyang Normal UniversityAbstract Background Functionality appreciation, as an important aspect of positive image, is associated with fewer body image disturbances, fewer disordered eating behaviors, and improved psychological well-being. However, it has been under-researched in Asian countries. The current work aimed to examine the psychometric properties of the Functionality Appreciation Scale (FAS) among four Chinese samples of different ages, and further examine measurement invariance and differences of the FAS across gender and age groups. Methods Exploratory and confirmatory factor analyses (EFA and CFA) were conducted to examine the factorial structure of the FAS among four Chinese samples of different ages, including middle school adolescents (n = 894, M age  = 12.17 years), high school adolescents (n = 1347, M age  = 15.07 years), young adults (n = 473, M age  = 21.95 years), and older adults (n = 313, M age  = 67.90 years). The measurement invariance of the FAS across gender and age was examined. Internal consistency reliability and construct validity were evaluated. Results The FAS had a unidimensional structure and was invariant across gender and age groups. The FAS presented sound psychometric properties in all age groups by gender, with good internal consistency reliability [e.g., high Cronbach’s α values (.91 ~ .97)] and good construct validity (e.g., significant associations with body appreciation, body dissatisfaction, and disordered eating). Moreover, group comparisons showed minimal gender differences in functionality appreciation. However, significant age differences were found in functionality appreciation, with older ages generally associated with higher functionality appreciation. Conclusion Overall, findings suggest that the FAS is a sound instrument to be used in the Chinese context. Furthermore, functionality appreciation was found to be higher in older adults than adolescents or young adults, suggesting the potential important role of aging in functionality appreciation.https://doi.org/10.1186/s40337-023-00826-8Body imageFunctionality appreciationValidationChineseInvariance
spellingShingle Jinbo He
Tianxiang Cui
Wesley R. Barnhart
Gui Chen
The Chinese version of the Functionality Appreciation Scale: Psychometric properties and measurement invariance across gender and age
Journal of Eating Disorders
Body image
Functionality appreciation
Validation
Chinese
Invariance
title The Chinese version of the Functionality Appreciation Scale: Psychometric properties and measurement invariance across gender and age
title_full The Chinese version of the Functionality Appreciation Scale: Psychometric properties and measurement invariance across gender and age
title_fullStr The Chinese version of the Functionality Appreciation Scale: Psychometric properties and measurement invariance across gender and age
title_full_unstemmed The Chinese version of the Functionality Appreciation Scale: Psychometric properties and measurement invariance across gender and age
title_short The Chinese version of the Functionality Appreciation Scale: Psychometric properties and measurement invariance across gender and age
title_sort chinese version of the functionality appreciation scale psychometric properties and measurement invariance across gender and age
topic Body image
Functionality appreciation
Validation
Chinese
Invariance
url https://doi.org/10.1186/s40337-023-00826-8
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