title: Factor structure and invariance of the POMS Mood State Questionnaire in Spanish.
abstract: The purpose of this study was to examine the extent to which the Spanish POMS assesses the same factors as the original form of the questionnaire. We started from a version with 63 items, representing seven conceptual dimensions. This version was administered to a sample of 364 adult athletes. In the whole sample, exploratory factor analytic findings suggested a more parsimonious measurement model, with 44 items and 6 first-order factors. Then the data from said sample were randomly divided into two sets, each containing about 50% of the subjects. The fit of the first sample set (n = 166) to the proposed model was adequate. Four of the main goodness-of-fit indices exhibited the following values: CFI = .95, NNFI = .95, SRMR = .083, and RMSEA = .064. We tested the same model in the second data set (n = 198), in which the fit was also acceptable, with values of .95, .94, .088, and .066 for CFI, NNFI, SRMR, and RMSEA, respectively. In addition, we used multi-group confirmatory factor analysis to provide evidence on the invariance of the model.
authors.affiliation: Facultad de Psicología, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, La Coruña, Spain. elena.andrade@usc.es
authors.forename: Elena
authors.initials: E
authors.lastname: Andrade
authors.forename: Constantino
authors.initials: C
authors.lastname: Arce
authors.forename: Julio
authors.initials: J
authors.lastname: Torrado
authors.forename: Javier
authors.initials: J
authors.lastname: Garrido
authors.forename: Cristina
authors.initials: C
authors.lastname: De Francisco
authors.forename: Iria
authors.initials: I
authors.lastname: Arce
mesh_terms: D000293:Adolescent; D000328:Adult; D000339:Affect; D056352:Athletes / Q000523:psychology*; D003431:Cross-Cultural Comparison; D005260:Female; D006801:Humans; D008297:Male; D010555:Personality Inventory / Q000706:statistics & numerical data*; D011594:Psychometrics / Q000706:statistics & numerical data; D012016:Reference Values; D015203:Reproducibility of Results; D013030:Spain; D014175:Translating; D055815:Young Adult