Commpulsive Buying Questionnaire Case Study

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Development of the Compulsive Buying Questionnaire
The Compulsive Buying Questionnaire (CBQ) is a revised combination of German Compulsive Buying Scale—Chinese Version (Li, Unger & Bi, 2014) and compulsive-buying scale (Ridgway, Kukar-Kinney & Monroe, 2008). The hypothetical components include impulsive-buying behavior (Faber and O’Guinn, 1992), obsessive-compulsive buying behavior (Hollander & Allen, 2006), and adverse consequences (Dell’Osso, Allen, Altamura, Buoli & Hollander, 2008).
Item selection and revision There are total ten items in the CBQ which holds 5-point Likert scales, ranging from “strongly disagree” (1) to “strongly agree” (5). Item2, 3, 5 are from Compulsive Buying Scale developed by Ridgway, Kukar-Kinney & Monroe (2008). Item1, 4, 7, 8 and 9 are from German Compulsive Buying Scale—Chinese Version (Li, Unger & Bi, 2014). The expression of item 3 “much of my
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The items of compulsive-buying questionnaire were translated from English to Chinese. And the translation quality of the items in the questionnaire were estimated by 3 bilinguals (Chinese and English) experts in translation (the survey of item translation seen Appendix B). The value of Content Validity Index (CVI, also called Expert Validity Index) was 0.92 (>0.8), which gained the evidence of content validity (Waltz, Strickland & Lenz, 1991).
The target participants of this study were Chinese university students. 250 questionnaires and measures for assessing validity of the questionnaire were sent through social media (Wechat and Weibo) and e-mail. After two weeks, a total of 190 questionnaires were returned with the respond rate 100%. Among the participants, 86 were males (45%) and 104 were females (55%); the average age was 21.54 ranging from 18 to 24 (SD=1.12).

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