Adaptation and validation of Richmond Compulsive Buying Scale in Chinese population

Simon Ching LAM, Zoe Sze Long CHAN, Andy Chun Yin CHONG, Wendy Wing Chi WONG, Jiawen YE

Research output: Journal PublicationsJournal Article (refereed)Researchpeer-review

Abstract

Background and aims: Compulsive buying (CB) is a behavioral addiction that is conceptualized as an obsessive- compulsive and impulsive-control disorder. The Richmond Compulsive Buying Scale (RCBS), a six-item selfreporting instrument that has been validated worldwide, was developed based on this theoretical background. This study aimed to adapt RCBS to the Chinese population (RCBS-TC) to guide future national and international prevalence studies. Methods: This methodological study was conducted in two phases. Phase 1 involved the forward and backward translation of RCBS, the content and face validation of the RCBS, and the evaluation of its translation adequacy. Phase 2 involved the psychometric testing of RCBS-TC for its internal consistency, stability, and construct validity using confirmatory factor analysis (CFA). Results: In Phase 1, RCBS-TC obtained satisfactory item-level (I-CVI = 83.3%-100%) and scale-level content validity index (CVI/AVE = 97.2%), comprehensibility (100%), and translation adequacy [intraclass correlation coefficient (ICC) = 0.858]. In Phase 2, based on data collected from 821 adults, RCBS-TC demonstrated a satisfactory internal consistency (Cronbach's α =.88; corrected item-total correlation coefficients = 0.61-0.78) 2-week test-retest reliability (ICC = 0.82 based on 61 university students). For construct validation, the CFA results indicated that the corrected first-order two-factor models were acceptable with the same goodness-of-fit indices (χ2/df = 8.56, CFI = 0.99, NFI = 0.98, IFI = 0.99, and RMSEA = 0.09). The 2-week test-retest reliability of RCBS-TC (n = 61) was also satisfactory (ICC = 0.82). Discussion and conclusions: This methodological study adopted appropriate and stringent procedures to ensure that the translation and validation of RCBS-TC was of quality. The results indicate that this scale has a satisfactory reliability and validity for the Chinese population.

Original languageEnglish
Pages (from-to)760-769
Number of pages10
JournalJournal of Behavioral Addictions
Volume7
Issue number3
Early online date28 Sep 2018
DOIs
Publication statusPublished - Sep 2018

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Reproducibility of Results
Population
Statistical Factor Analysis
Psychometrics
Cross-Sectional Studies
Students

Keywords

  • adaptation
  • behavioral addiction
  • Chinese
  • compulsive buying
  • psychometric testing
  • translation

Cite this

LAM, Simon Ching ; CHAN, Zoe Sze Long ; CHONG, Andy Chun Yin ; WONG, Wendy Wing Chi ; YE, Jiawen. / Adaptation and validation of Richmond Compulsive Buying Scale in Chinese population. In: Journal of Behavioral Addictions. 2018 ; Vol. 7, No. 3. pp. 760-769.
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title = "Adaptation and validation of Richmond Compulsive Buying Scale in Chinese population",
abstract = "Background and aims: Compulsive buying (CB) is a behavioral addiction that is conceptualized as an obsessive- compulsive and impulsive-control disorder. The Richmond Compulsive Buying Scale (RCBS), a six-item selfreporting instrument that has been validated worldwide, was developed based on this theoretical background. This study aimed to adapt RCBS to the Chinese population (RCBS-TC) to guide future national and international prevalence studies. Methods: This methodological study was conducted in two phases. Phase 1 involved the forward and backward translation of RCBS, the content and face validation of the RCBS, and the evaluation of its translation adequacy. Phase 2 involved the psychometric testing of RCBS-TC for its internal consistency, stability, and construct validity using confirmatory factor analysis (CFA). Results: In Phase 1, RCBS-TC obtained satisfactory item-level (I-CVI = 83.3{\%}-100{\%}) and scale-level content validity index (CVI/AVE = 97.2{\%}), comprehensibility (100{\%}), and translation adequacy [intraclass correlation coefficient (ICC) = 0.858]. In Phase 2, based on data collected from 821 adults, RCBS-TC demonstrated a satisfactory internal consistency (Cronbach's α =.88; corrected item-total correlation coefficients = 0.61-0.78) 2-week test-retest reliability (ICC = 0.82 based on 61 university students). For construct validation, the CFA results indicated that the corrected first-order two-factor models were acceptable with the same goodness-of-fit indices (χ2/df = 8.56, CFI = 0.99, NFI = 0.98, IFI = 0.99, and RMSEA = 0.09). The 2-week test-retest reliability of RCBS-TC (n = 61) was also satisfactory (ICC = 0.82). Discussion and conclusions: This methodological study adopted appropriate and stringent procedures to ensure that the translation and validation of RCBS-TC was of quality. The results indicate that this scale has a satisfactory reliability and validity for the Chinese population.",
keywords = "adaptation, behavioral addiction, Chinese, compulsive buying, psychometric testing, translation",
author = "LAM, {Simon Ching} and CHAN, {Zoe Sze Long} and CHONG, {Andy Chun Yin} and WONG, {Wendy Wing Chi} and Jiawen YE",
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Adaptation and validation of Richmond Compulsive Buying Scale in Chinese population. / LAM, Simon Ching; CHAN, Zoe Sze Long; CHONG, Andy Chun Yin; WONG, Wendy Wing Chi; YE, Jiawen.

In: Journal of Behavioral Addictions, Vol. 7, No. 3, 09.2018, p. 760-769.

Research output: Journal PublicationsJournal Article (refereed)Researchpeer-review

TY - JOUR

T1 - Adaptation and validation of Richmond Compulsive Buying Scale in Chinese population

AU - LAM, Simon Ching

AU - CHAN, Zoe Sze Long

AU - CHONG, Andy Chun Yin

AU - WONG, Wendy Wing Chi

AU - YE, Jiawen

PY - 2018/9

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N2 - Background and aims: Compulsive buying (CB) is a behavioral addiction that is conceptualized as an obsessive- compulsive and impulsive-control disorder. The Richmond Compulsive Buying Scale (RCBS), a six-item selfreporting instrument that has been validated worldwide, was developed based on this theoretical background. This study aimed to adapt RCBS to the Chinese population (RCBS-TC) to guide future national and international prevalence studies. Methods: This methodological study was conducted in two phases. Phase 1 involved the forward and backward translation of RCBS, the content and face validation of the RCBS, and the evaluation of its translation adequacy. Phase 2 involved the psychometric testing of RCBS-TC for its internal consistency, stability, and construct validity using confirmatory factor analysis (CFA). Results: In Phase 1, RCBS-TC obtained satisfactory item-level (I-CVI = 83.3%-100%) and scale-level content validity index (CVI/AVE = 97.2%), comprehensibility (100%), and translation adequacy [intraclass correlation coefficient (ICC) = 0.858]. In Phase 2, based on data collected from 821 adults, RCBS-TC demonstrated a satisfactory internal consistency (Cronbach's α =.88; corrected item-total correlation coefficients = 0.61-0.78) 2-week test-retest reliability (ICC = 0.82 based on 61 university students). For construct validation, the CFA results indicated that the corrected first-order two-factor models were acceptable with the same goodness-of-fit indices (χ2/df = 8.56, CFI = 0.99, NFI = 0.98, IFI = 0.99, and RMSEA = 0.09). The 2-week test-retest reliability of RCBS-TC (n = 61) was also satisfactory (ICC = 0.82). Discussion and conclusions: This methodological study adopted appropriate and stringent procedures to ensure that the translation and validation of RCBS-TC was of quality. The results indicate that this scale has a satisfactory reliability and validity for the Chinese population.

AB - Background and aims: Compulsive buying (CB) is a behavioral addiction that is conceptualized as an obsessive- compulsive and impulsive-control disorder. The Richmond Compulsive Buying Scale (RCBS), a six-item selfreporting instrument that has been validated worldwide, was developed based on this theoretical background. This study aimed to adapt RCBS to the Chinese population (RCBS-TC) to guide future national and international prevalence studies. Methods: This methodological study was conducted in two phases. Phase 1 involved the forward and backward translation of RCBS, the content and face validation of the RCBS, and the evaluation of its translation adequacy. Phase 2 involved the psychometric testing of RCBS-TC for its internal consistency, stability, and construct validity using confirmatory factor analysis (CFA). Results: In Phase 1, RCBS-TC obtained satisfactory item-level (I-CVI = 83.3%-100%) and scale-level content validity index (CVI/AVE = 97.2%), comprehensibility (100%), and translation adequacy [intraclass correlation coefficient (ICC) = 0.858]. In Phase 2, based on data collected from 821 adults, RCBS-TC demonstrated a satisfactory internal consistency (Cronbach's α =.88; corrected item-total correlation coefficients = 0.61-0.78) 2-week test-retest reliability (ICC = 0.82 based on 61 university students). For construct validation, the CFA results indicated that the corrected first-order two-factor models were acceptable with the same goodness-of-fit indices (χ2/df = 8.56, CFI = 0.99, NFI = 0.98, IFI = 0.99, and RMSEA = 0.09). The 2-week test-retest reliability of RCBS-TC (n = 61) was also satisfactory (ICC = 0.82). Discussion and conclusions: This methodological study adopted appropriate and stringent procedures to ensure that the translation and validation of RCBS-TC was of quality. The results indicate that this scale has a satisfactory reliability and validity for the Chinese population.

KW - adaptation

KW - behavioral addiction

KW - Chinese

KW - compulsive buying

KW - psychometric testing

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