Development of a short version of the perceived social support scale: based on classical test theory and ant colony optimization

Abstract Background Despite the relatively small number of items on the Perceived Social Support Scale (PSSS-12), there has been a trend toward simplification of the scale in order to minimize testing time. In this situation, some researchers based on the responses of military spouses in the U.S., h...

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Main Authors: Yunchou Wu, Jingqi Tang, Zhuoran Du, Ke Chen, Fei Wang, Xiaonan Sun, Guoying Zhang, Yibo Wu
Format: Article
Language:English
Published: BMC 2025-01-01
Series:BMC Public Health
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Online Access:https://doi.org/10.1186/s12889-025-21399-y
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author Yunchou Wu
Jingqi Tang
Zhuoran Du
Ke Chen
Fei Wang
Xiaonan Sun
Guoying Zhang
Yibo Wu
author_facet Yunchou Wu
Jingqi Tang
Zhuoran Du
Ke Chen
Fei Wang
Xiaonan Sun
Guoying Zhang
Yibo Wu
author_sort Yunchou Wu
collection DOAJ
description Abstract Background Despite the relatively small number of items on the Perceived Social Support Scale (PSSS-12), there has been a trend toward simplification of the scale in order to minimize testing time. In this situation, some researchers based on the responses of military spouses in the U.S., has simplified the PSSS-12 to develop the PSSS-M6. This study aimed to develop a short version of the PSSS-12 suitable for the Chinese general population. Methods A multi-stage stratified cluster sampling method was employed to collect data from 10,914 residents in 120 cities across the country. After randomly dividing the data into two parts, exploratory analysis and confirmatory analysis were conducted separately. During the exploratory analysis of dataset 1, the scale was simplified using both Classical Test Theory (CTT) and the Ant Colony Optimization (ACO), resulting in one short form for each approach. Additionally, three short forms were obtained by introducing other short forms of the Multidimensional Scale of Perceived Social Support (MSPSS) scale derived from multidimensional item response theory in previous studies. The reliability and discriminant validity of the three short forms were tested. Subsequently, the reliability, validity, model fit and measurement invariance for the two short forms of the MSPSS scale were examined using dataset 2. Results The 6-item short form developed based on the ACO (PSSS-A6) exhibited the best psychometric properties among all the short forms. Moreover, the 3-item short form composed of items with the highest factor loadings in each dimension also demonstrated good psychometric properties. Conclusions In future research, if a short form of the MSPSS scale is needed for measurement purposes, the 3-item short form is suitable for clinical settings, large-scale cross-sectional studies, or longitudinal studies, while the PSSS-A6 is more appropriate for more precise measurements. Trial registration This study underwent ethical review (JNUKY-2021-018) by Jinan University.
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spelling doaj-art-34250ffe75c84e6d888e1eb62ca85a372025-01-26T12:55:55ZengBMCBMC Public Health1471-24582025-01-0125111110.1186/s12889-025-21399-yDevelopment of a short version of the perceived social support scale: based on classical test theory and ant colony optimizationYunchou Wu0Jingqi Tang1Zhuoran Du2Ke Chen3Fei Wang4Xiaonan Sun5Guoying Zhang6Yibo Wu7Faculty of Psychology, Southwest UniversitySchool of Psychology and Cognitive Science, East China Normal UniversityDepartment of Psychology, School of Humanities, Southeast UniversityDepartment of Psychology, Renmin University of ChinaState Key Laboratory of Cognition and Learning, Department of Psychology, Beijing Normal UniversityPublic Health College of Harbin Medical UniversityDongying People’s HosptialSchool of Public Health, Peking UniversityAbstract Background Despite the relatively small number of items on the Perceived Social Support Scale (PSSS-12), there has been a trend toward simplification of the scale in order to minimize testing time. In this situation, some researchers based on the responses of military spouses in the U.S., has simplified the PSSS-12 to develop the PSSS-M6. This study aimed to develop a short version of the PSSS-12 suitable for the Chinese general population. Methods A multi-stage stratified cluster sampling method was employed to collect data from 10,914 residents in 120 cities across the country. After randomly dividing the data into two parts, exploratory analysis and confirmatory analysis were conducted separately. During the exploratory analysis of dataset 1, the scale was simplified using both Classical Test Theory (CTT) and the Ant Colony Optimization (ACO), resulting in one short form for each approach. Additionally, three short forms were obtained by introducing other short forms of the Multidimensional Scale of Perceived Social Support (MSPSS) scale derived from multidimensional item response theory in previous studies. The reliability and discriminant validity of the three short forms were tested. Subsequently, the reliability, validity, model fit and measurement invariance for the two short forms of the MSPSS scale were examined using dataset 2. Results The 6-item short form developed based on the ACO (PSSS-A6) exhibited the best psychometric properties among all the short forms. Moreover, the 3-item short form composed of items with the highest factor loadings in each dimension also demonstrated good psychometric properties. Conclusions In future research, if a short form of the MSPSS scale is needed for measurement purposes, the 3-item short form is suitable for clinical settings, large-scale cross-sectional studies, or longitudinal studies, while the PSSS-A6 is more appropriate for more precise measurements. Trial registration This study underwent ethical review (JNUKY-2021-018) by Jinan University.https://doi.org/10.1186/s12889-025-21399-yPerceived social supportScale simplificationClassical test theoryAnt colony optimization
spellingShingle Yunchou Wu
Jingqi Tang
Zhuoran Du
Ke Chen
Fei Wang
Xiaonan Sun
Guoying Zhang
Yibo Wu
Development of a short version of the perceived social support scale: based on classical test theory and ant colony optimization
BMC Public Health
Perceived social support
Scale simplification
Classical test theory
Ant colony optimization
title Development of a short version of the perceived social support scale: based on classical test theory and ant colony optimization
title_full Development of a short version of the perceived social support scale: based on classical test theory and ant colony optimization
title_fullStr Development of a short version of the perceived social support scale: based on classical test theory and ant colony optimization
title_full_unstemmed Development of a short version of the perceived social support scale: based on classical test theory and ant colony optimization
title_short Development of a short version of the perceived social support scale: based on classical test theory and ant colony optimization
title_sort development of a short version of the perceived social support scale based on classical test theory and ant colony optimization
topic Perceived social support
Scale simplification
Classical test theory
Ant colony optimization
url https://doi.org/10.1186/s12889-025-21399-y
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