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A Psychometric Study of the Multidimensional Fatigue Inventory to Assess Fatigue in Patients with Schizophrenia Spectrum Disorders.

In English

Författare

Summary, in English

Fatigue is frequently reported by patients with mental illness. The multidimensional fatigue inventory (MFI-20) is a self-assessment instrument with 20 items including five dimensions of fatigue. The purpose of this study was to examine the test-retest reliability, internal consistency, convergent construct validity and feasibility of using MFI-20 in patients with schizophrenia spectrum disorders. Patients completed two self-assessment instruments, MFI-20 (n = 93) and Visual Analogue Scale (n = 79), twice within 1 week ±2 days. Fifty-three patients also rated the feasibility of responding to the MFI-20 with a Likert scale. The test-retest reliability and validity were analysed by using Spearman's correlations and internal consistency by calculating Cronbach's α. The test-retest showed a correlation between .66 and .91 for all subscales of MFI. The internal consistency was .92. The analysis of convergent construct validity showed a correlation of .68 (time 1) and .77 (time 2). No item was systematically identified as being difficult to answer.

Publiceringsår

2015

Språk

Engelska

Sidor

377-382

Publikation/Tidskrift/Serie

Community Mental Health Journal

Volym

51

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

Springer

Ämne

  • Psychiatry

Status

Published

Forskningsgrupp

  • Human Movement: health and rehabilitation
  • Mental Health Services Research

ISBN/ISSN/Övrigt

  • ISSN: 0010-3853