Factor structure of the Positive and Negative Affect Schedule (PANAS) in adult women with fibromyalgia from Southern Spain: the al-Ándalus project

PeerJ

article

Fernando Estévez-López¹  Manuel Pulido-Martos³  Christopher J. Armitage⁴  Alison Wearden⁴  Inmaculada C. Álvarez-Gallardo¹  Manuel Javier Arrayás-Grajera⁵  María J. Girela-Rejón¹  Ana Carbonell-Baeza⁶  Virginia A. Aparicio⁷  Rinie Geenen²  Manuel Delgado-Fernández¹  Víctor Segura-Jiménez¹ 

[1] Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada;Department of Psychology, Faculty of Social and Behavioural Sciences, Utrecht University;Department of Psychology, Faculty of Humanities and Education Sciences, University of Jaén;Manchester Centre for Health Psychology, School of Psychological Sciences, Manchester Academic Health Science Centre, University of Manchester;Department of Physical Education, Music and Fine Arts, Faculty of Education Sciences, University of Huelva;Department of Physical Education, Faculty of Education Sciences, University of Cádiz;Department of Physiology and Institute of Nutrition and Food Technology, Faculty of Pharmacy, University of Granada;Department of Public and Occupational Health, EMGO+ Institute for Health and Care Research, VU University Medical Care

关键词: Affectivity;    Chronic pain;    Confirmatory factor analysis;    Dimensional structure;    Emotion;    Mood;    Positive and Negative Affect Schedule;    Psychometrics;   

DOI  :  10.7717/peerj.1822

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Background: Fibromyalgia is a syndrome characterized by the presence of widespread chronic pain. People with fibromyalgia report lower levels of Positive Affect and higher levels of Negative Affect than non-fibromyalgia peers. The Positive and Negative Affect Schedule (PANAS)–a widely used questionnaire to assess two core domains of affect; namely ‘Positive Affect’ and ‘Negative Affect’ –has a controversial factor structure varying across studies. The internal structure of a measurement instrument has an impact on the meaning and validity of its score. Therefore, the aim of the present study was to assess the structural construct validity of the PANAS in adult women with fibromyalgia. Methods: This population-based cross-sectional study included 442 adult women with fibromyalgia (age: 51.3 ± 7.4 years old) from Andalusia (Southern Spain). Confirmatory factor analyses were conducted to test the factor structure of the PANAS. Results: A structure with two correlated factors (Positive Affect and Negative Affect) obtained the best fit; S-B χ2 = 288.49, df = 155, p < .001; RMSEA = .04; 90% CI of RMSEA = (.036, .052); the best fit SRMR = .05; CFI = .96; CAIC = −810.66, respectively. Conclusions: The present study demonstrates that both Positive Affect and Negative Affect are core dimensions of affect in adult women with fibromyalgia. A structure with two correlated factors of the PANAS emerged from our sample of women with fibromyalgia from Andalusia (Southern Spain). In this model, the amount of variance shared by Positive Affect and Negative Affect was small. Therefore, our findings support to use and interpret the Positive Affect and Negative Affect subscales of the PANAS as separate factors that are associated but distinctive as well.

【 授权许可】

CC BY