Psychometric properties of the Spanish version of the mindful attention awareness scale (MAAS) in patients with fibromyalgia
1 Departamento de personalidad, evaluación y tratamientos psicológicos, Universitat Jaume I, CIBEROBN Ciber Fisiopatologia de la obesidad y la nutrición, Castellón, Spain
2 Parc Sanitari Sant Joan de Déu and Fundació Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, Spain
3 Department of Family Medicine, University of Sao Paulo, Sao Paulo, Brazil
4 Bitbrain Technologies, Zaragoza, Spain
5 Department of Psychiatry, Miguel Servet Hospital & University of Zaragoza, Instituto Aragonés de Ciencias de la Salud, Red de Actividades Preventivas y de Promoción de la Salud (REDIAPP), Zaragoza, Spain
Health and Quality of Life Outcomes 2013, 11:6 doi:10.1186/1477-7525-11-6Published: 14 January 2013
Mindful-based interventions improve functioning and quality of life in fibromyalgia (FM) patients. The aim of the study is to perform a psychometric analysis of the Spanish version of the Mindful Attention Awareness Scale (MAAS) in a sample of patients diagnosed with FM.
The following measures were administered to 251 Spanish patients with FM: the Spanish version of MAAS, the Chronic Pain Acceptance Questionnaire, the Pain Catastrophising Scale, the Injustice Experience Questionnaire, the Psychological Inflexibility in Pain Scale, the Fibromyalgia Impact Questionnaire and the Euroqol. Factorial structure was analysed using Confirmatory Factor Analyses (CFA). Cronbach's α coefficient was calculated to examine internal consistency, and the intraclass correlation coefficient (ICC) was calculated to assess the test-retest reliability of the measures. Pearson’s correlation tests were run to evaluate univariate relationships between scores on the MAAS and criterion variables.
The MAAS scores in our sample were low (M = 56.7; SD = 17.5). CFA confirmed a two-factor structure, with the following fit indices [sbX2 = 172.34 (p < 0.001), CFI = 0.95, GFI = 0.90, SRMR = 0.05, RMSEA = 0.06. MAAS was found to have high internal consistency (Cronbach’s α = 0.90) and adequate test-retest reliability at a 1–2 week interval (ICC = 0.90). It showed significant and expected correlations with the criterion measures with the exception of the Euroqol (Pearson = 0.15).
Psychometric properties of the Spanish version of the MAAS in patients with FM are adequate. The dimensionality of the MAAS found in this sample and directions for future research are discussed.