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Title
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Development of a screening instrument to assess premenstrual dysphoric disorder as conceptualized in DSM-5
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Author
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Abstract
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| Objective This study aimed at developing and validating a screening instrument to assess premenstrual dysphoric disorder (PMDD) based on DSM-5 criteria, which is not yet available. Methods The Premenstrual Dysphoric Disorder Questionnaire for DSM-5 (Cuestionario del Trastorno Disfórico Premenstrual DSM-5), a 25-item questionnaire to assess PMDD was developed and completed in Spanish by 2820 women (Age M = 23.43; SD = 7.87). Exploratory factor analysis (N = 1410) and confirmatory factor analysis (N = 1410) were performed in randomly selected subsamples. Empirical evidence of construct validity was obtained via a multitrait-multimethod approach (N = 118). Additional validity evidence was provided by associating PMDD with Neuroticism. Internal consistency and testretest reliability were checked. Results Exploratory and confirmatory factor analyses yielded a bi-dimensional structure. The first dimension, called Dysphoria, included dysphoric symptoms and weight gain; the second dimension, Apathy, referred to apathetic and physical symptoms. Both dimensions displayed good internal consistency coefficients (Dysphoria's ordinal alpha = 0.88; Apathy's ordinal alpha = 0.84), and moderate temporal stability. The multitrait-multimethod analysis showed that convergent coefficients were higher than discriminant coefficients. Furthermore, a positive relationship between Neuroticism and PMDD was observed. |
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Language
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English
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Source (journal)
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Journal of psychosomatic research. - Oxford
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Publication
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Oxford
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2016
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ISSN
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0022-3999
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DOI
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10.1016/J.JPSYCHORES.2016.07.003
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Volume/pages
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88
(2016)
, p. 15-20
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ISI
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000381841600004
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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