Confirmatory Factor Analysis of the Long and Short Forms of the Worry Domains Questionnaire
Abstract
The Worry Domains Questionnaire was proposed as a measure of both pathological and nonpathological worry, and assesses the frequency of worrying about five different domains: relationships, lack of confidence, aimless future, work, and financial. The present study analyzed the factor structure of the long and short forms of the WDQ (WDQ and WDQ-SF, respectively) through confirmatory factor analysis in a sample of 262 students (M age = 21.8; SD = 2.6; 86.3% females). While the goodness-of-fit indices did not provide support for the WDQ, good fit indices were found for the WDQ-SF. Furthermore, no source of misspecification was identified, thus, supporting the factorial validity of the WDQ-SF scale. Significant positive correlations between the WDQ-SF and its subscales with worry (PSWQ), anxiety (STAI-T), and depression (BDI) were found. The internal consistency was good for the total scale and for the subscales. This work provides support for the use of the WDQ-SF, and potential uses for research and clinical purposes are discussed.
References
2002). Anxiety and its disorders. The nature and treatment of anxiety and panic. New York: Guilford.
(1961). An inventory for measuring depression. Archives of General Psychiatry, 4, 561–571.
(1990). Comparative fit indexes in structural models. Psychological Bulletin, 107, 238–246.
(2005). Factor structure, reliability, and validity of the Penn State Worry Questionnaire: Differences between African-American and White-American college students. Journal of Anxiety Disorders, 19, 827–843.
(1979). Translation procedures for cross-cultural use of measurement instruments. Educational Evaluation and Policy Analysis, 1, 71–76.
(1993). A comparison of three worry questionnaires. Behavior Research and Therapy, 31, 51–56.
(1992). Some characteristics of worrying: Evidence for worrying and anxiety as separate constructs. Personality and Individual Differences, 13, 133–147.
(1984). Anxiety and the worry process. Bulletin of the Psychonomic Society, 22, 545–548.
(2002). Factorial structure of a French version of the Penn State Worry Questionnaire. European Journal of Psychological Assessment, 18, 158–164.
(1997). Measuring facets of worry: A Lisrel analysis of the Worry Domains Questionnaire. Personality and Individual Differences, 23, 827–837.
(1999). Sample size in factor analysis. Psychological Methods, 4, 84–99.
(1990). Development and validation of the Penn State Worry Questionnaire. Behavior Research and Therapy, 28, 487–495.
(2002). Aplicabilidad del Inventario de Preocupación de Pensilvania (PSWQ) a población de edad avanzada. Ansiedad y Estrés, 8, 157–172.
(1997). Information-processing, storage characteristics, and worry. Behavior Research and Therapy, 35, 1015–1023.
(1983). A simple method for evaluating the Shapiro-Francia W test of nonnormality. Applied Statistics, 32, 297–300.
(1972). An approximate analysis of variance test for normality. Journal of the American Statistic Association, 67, 215–216.
(1970). STAI: Manual for the State-Trait-Anxiety Inventory. Palo Alto: Consulting Psychologists Press. (Spanish version by TEA ediciones, Madrid, 1982).
(1998). Reliability and validity of two widely used worry questionnaires: Self-report and self-peer convergence. Personality and Individual Differences, 24, 887–890.
(2001). A short form of the Worry Domains Questionnaire: Construction and factorial validation. Personality and Individual Differences, 31, 591–598.
(1996). Using multivariate statistics (3rd ed.). New York: Harper Collins College Publishers.
(1994). The Worry Domains Questionnaire. In , Worrying. Perspectives on theory, assessment, and treatment (pp. 285–297). New York: Wiley.
(1992). A questionnaire for the measurement of nonpathological worry. Personality and Individual Differences, 13, 161–168.
(1999). The Penn State Worry Questionnaire and the Worry Domains Questionnaire: Structure, reliability, and validity. Clinical Psychology and Psychotherapy, 6, 297–307.
(1997). Fiabilidad y valores normativos de la versión española del inventario para la depresión de Beck de 1978. Clínica y Salud, 8, 403–422.
(2007). Capturing worry in daily life: Are trait questionnaires sufficient? Behavior Research and Therapy, 45, 1835–1844.
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