Psychometric properties of the Generalized Anxiety Disorder-7 Scale in Ethiopian university students

Md Dilshad Manzar, Mohammed Salahuddin, Ahmad Alghadir, Shahnawaz Anwer, Sony Peter, Ahmed S. Bahammam, Seithikurippu R. Pandi-Perumal

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

The prevalence of anxiety and its associated factors in Ethiopians necessitates availability of a valid questionnaire tool to screen for this disorder. Therefore, this study aimed to assess the factor structure, its stability, and psychometric measures of the Generalized Anxiety Disorder-7 Scale GAD-7) in Ethiopian university students. A cross-sectional study with random sampling was carried out in students (n = 354, age = 21.79 ± 4.49) attending Mizan-Tepi University, Ethiopia. The GAD-7, the Perceived Stress Scale (PSS), and a sociodemographic questionnaire were completed by participants. The unidimensional model of the GAD-7 showed configural, metric, scalar, and strict invariance among gender groups. The Cronbach's alpha (0.77), item-total score correlations (r = .51-.72, p < .01), and inter-item correlations (all significant, p < .05) indicated adequate internal consistency. GAD-7 scale scores correlated significantly with the PSS, suggesting desired convergent validity. The GAD-7 has good psychometric validity with Ethiopian university students.

Original languageEnglish
Pages (from-to)405-427
Number of pages23
JournalBulletin of the Menninger Clinic
Volume85
Issue number4
DOIs
Publication statusPublished - 2021

Keywords

  • Anxiety
  • Ethiopia
  • GAD-7
  • University students

ASJC Scopus subject areas

  • Phychiatric Mental Health
  • Clinical Psychology
  • Psychiatry and Mental health

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