The impact of wording effect on reliability and validity of the Core Self-Evaluation Scale (CSES): A bi-factor perspective |
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| Affiliation: | 2. Department of Speech Therapy, Zahedan University of Medical Sciences, Zahedan, Iran;3. Department of Consultation, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran;4. Department of Communication Sciences and Disorders, Bowling Green State University, Bowling Green, Ohio;5. Otolaryngology Research Center, Amiralam Hospital, Tehran University of Medical Sciences, Tehran, Iran;1. University of Munich, Germany;2. University of Trier, Germany |
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| Abstract: | “Wording effect” refers to the systematic method variance caused by positive and negative item wordings on a self-report measure. Using the Core Self-Evaluation Scale (CSES) as an example, this study modeled the wording effect, and examined the impact of such wording effect on the reliability and validity of CSES. Five competing models were compared, and the findings suggested that the bi-factor model with a negative group factor best represented the CSES structure. The impact of wording effect on the reliability and validity of CSES was investigated, and the results showed that such impact existed and was non-negligible. Failure to model the wording effect would lead to biased estimates of the reliability and criterion-related validity of CSES. Limitations of the study are discussed, and considerations for future research directions are suggested. |
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| Keywords: | Wording effect Bi-factor model Reliability Validity CSES |
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