title: Development of a screening instrument to assess premenstrual dysphoric disorder as conceptualized in DSM-5.
abstract: 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.
  
  
  
  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 test-retest reliability were checked.
  
  
  
  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.
  
  
  
  These findings suggest that the instrument is valid and reliable to assess PMDD.
authors: Department of Educational Psychology and Pedagogy, Begoñako Andra Mari Teacher Training University College, BAM, Bilbao, Spain. Electronic address: leire.aperribai@gmail.com.
authors: Leire
authors: L
authors: Aperribai
authors: Department of Psychology, University of the Basque Country UPV/EHU, Donostia-San Sebastian, Spain.
authors: Itziar
authors: I
authors: Alonso-Arbiol
authors: Department of Psychology, University of the Basque Country UPV/EHU, Donostia-San Sebastian, Spain.
authors: Nekane
authors: N
authors: Balluerka
authors: Faculty of Psychology and Educational Sciences, Katholieke Universiteit Leuven, Leuven, Belgium.
authors: Laurence
authors: L
authors: Claes
mesh_terms: D000328:Adult; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D065446:Premenstrual Dysphoric Disorder / Q000175:diagnosis*; D011569:Psychiatric Status Rating Scales; D015203:Reproducibility of Results; D012189:Retrospective Studies; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: DSM-5; Premenstrual dysphoric disorder; Reliability; Test development; Validity