On dimensionality, measurement invariance, and suitability of sum scores for the PHQ-9 and the GAD-7

Stochl, J.; Fried, E. I.; Fritz, J.; Croudace, T. J.; Russo, D. A.; Knight, C.; Perez, J. (2022)

Article / Letter to editor

• All authors: Stochl, J.; Fried, E. I.; Fritz, J.; Croudace, T. J.; Russo, D. A.; Knight, C.; Perez, J.
• Date: 2022
• Journal: Assessment
• Volume: 29
• Issue: 3
• Pages: 355–366
• DOI: doi:10.1177/1073191120976863