Positive Beliefs About Rumination Scale-adapted: Validation of the Portuguese Version - 09/06/15

Doi : 10.1016/S0924-9338(15)31434-6

A. Macedo ^a, A. Pereira ^a, M.J. Soares ^a, A. Amaral ^a, V. Nogueira ^a, N. Madeira ^a, C. Roque ^a, M. Marques ^a, S. Bos ^a, B. Maia ^b, A.T. Pereira ^b

^a Psychological Medicine, Faculty of Medicine University of Coimbra, Coimbra, Portugal

^b Faculty of Philosophy, The Catholic University of Portugal Braga Regional Centre, Braga, Portugal

Résumé

Introduction

Watkins and Moulds (2005) adapted the Positive Beliefs aboutRumination Scale (PBRS; Papageorgiou and Wells, 2001) to reduce confounds with mood states. The items keep the meaningthat recurrent thinking about feelings would be helpful, but direct mentions ofrumination, depression and negative mood or events were omitted.

Objective

To investigate thepsychometric properties of the PBRS-Adapted Portuguese version.

Methods

Acommunity sample of 552 university students (425 girls; 80.3%; mean age=19.72±1.147) answered the Portuguesepreliminary version of the PBRS-A, and the validated Portuguese versions ofother self-reported questionnaires: Perseverative ThinkingQuestionnaire/PTQ-15; Repetitive Thinking Questionnaire/RNT-10; The Metacognitions Questionnaire-30/MCQ-30;Profile of Mood States/POMS. To study the temporal stability, 242 (207girls; 85.5%) respondents answered the MCQ-30 again after approximately six weeks.

Results

The PBRS-A Cronbach alpha was ’very good” (a=.80). All the itemscontribute to the internal consistency. The test-retest correlation coefficientwas high, positive and significant (.64; p< .001); there was not significantdifference between test and re-test scores [25.89±5.384 vs. 24.64±5.444, t (218)=4.014,p=.114]. Following Kaiser and Cattel Scree Plot criteria, only one factor wasextracted, meaning that the scale is unidimensional.

PBRS-Asignificantly, positively and moderately correlated with RNT-10, PTQ-15, MCQ-30and all their dimensions (all r>.35;p<.01) as well as with all the negative mood states from POMS (all r@.20; p<.01).

Conclusions

The Portuguese version of PBRS-Ahas good reliability and validity. As a transdiagnostic measure, it could be veryuseful to assess individuals with several emotional disorders, both in clinicaland research contexts.

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