Psychometric properties of the generalized anxiety disorder-7 (GAD-7) in a sample of workers

Frontiers in Psychiatry

Psychiatry

Ernesto Rosario-Hernández¹  César Merino-Soto²  Lillian V. Rovira-Millán³  Marisol Angulo-Ramos⁴ 

[1] Clinical Psychology Programs, School of Behavioral and Brain Sciences, Ponce Health Sciences University, Ponce, Puerto Rico;Ponce Research Institute, Ponce Health Sciences University, Ponce, Puerto Rico;Instituto de Investigación de Psicología, Universidad de San Martín de Porres, Lima, Perú;Psychology Program, Social Sciences Department, University of Puerto Rico, Cayey, Puerto Rico;Sociedad Científica Peruana de Enfermería Pediátrica, Lima, Peru;

关键词: differential item functioning;    GAD-7;    item response theory;    psychometric properties;    validity;    anxiety;    workers;   

DOI  :  10.3389/fpsyt.2023.999242

 received in 2022-07-20, accepted in 2023-03-03,  发布年份 2023

来源: Frontiers

【 摘 要 】

ObjectiveTo evaluate the psychometric properties of the GAD-7 by obtaining evidence of internal structure (dimensionality, precision and differential functioning of items) and association with external variables.MethodsA total of 2,219 protocols from three different studies conducted with Puerto Rican employees that administered the GAD-7 were selected for the current study. Item response theory modeling was used to assess internal structure, and linear association with external variables.ResultsThe items were adapted to a graduated response model, with high similarity in the discrimination and location parameters, as well as in the precision at the level of the items and in the total score. No violation of local independence and differential item functioning was detected. The association with convergent (work-related rumination) and divergent (work engagement, sex, and age) variables were theoretically consistent.ConclusionThe GAD-7 is a psychometrically robust tool for detecting individual variability in symptoms of anxiety in workers.

【 授权许可】

Unknown   
Copyright © 2023 Merino-Soto, Angulo-Ramos, Rovira-Millán and Rosario-Hernández.