Factor structure of the Penn State Worry Questionnaire: examination of a method factor |
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Authors: | Hazlett-Stevens Holly Ullman Jodie B Craske Michelle G |
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Institution: | Department of Psychology, University of Nevada, Reno, NV 89557, USA. hhazlett@unr.nevada.edu. |
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Abstract: | The Penn State Worry Questionnaire (PSWQ) was originally designed as a unifactorial measure of pathological trait worry. However, recent studies supported a two-factor solution with positively worded items loading on the first factor and reverse-scored items loading on a second factor. The current study compared this two-factor model to a negative wording method factor solution among college students. A method factor model with all PSWQ items loading on a single worry factor and reverse-scored items loading on a negative wording method factor provided as good a fit as the two-factor model. This method factor alone did not predict a generalized anxiety disorder diagnosis. Finally, the psychometric properties of an abbreviated scale containing only positively worded items were examined. The PSWQ appears to measure a single unitary construct, but response patterns differ between positively worded and reverse-scored items. Theoretical implications for pathological worry and assessment-related issues are discussed. |
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