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Validation of a brief questionnaire measuring positive mindset in patients with uveitis
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Orientador(es)
Resumo(s)
Aim: Illness may impact the positivity of a person’s mindset. However, patients with visual impairment, such as uveitis, may struggle to
complete questionnaires. The aim of this study was to validate a brief and simple measure of positive mindset in people with uveitis.
Method: This study was a cross-sectional survey of 200 people with uveitis. The Positive Mindset Index (PMI) questionnaire uses six items
to measure a patient’s happiness, confidence, sense of being in control, stability, motivation, and optimism.
Results: Exploratory factor analysis revealed a well-fitting unidimensional factor structure (KMO = .898), with strong factor loadings (from
.616 to .721) and excellent internal reliability (Cronbach’s α = .926). The PMI showed strong concurrent validity with the mental health subscale
of the SF-36 (r = .789) and good construct validity relative to the physical health subscale of the SF-36 (r = .468). Excellent test-retest reliability
was seen (r = .806). Patients taking 10 mg or more corticosteroid daily had significantly lower PMI scores than those on a lower dose or no
dose (t (170) = 2.298, p < .023).
Conclusion: The PMI has good face validity and sound psychometric properties. It is a very brief and simple measure, thus user-friendly for
patients with visual impairment, as well as researchers and others using the scale.
Descrição
Palavras-chave
Visual impairment Uveitis Birdshot Quality of life (QoL) Patient reported outcome measure (PROM) Questionnaire validation
Contexto Educativo
Citação
Psychology, Community & Health, 3(1), 1-10
Editora
PsychOpen