Joshua James Crawford

Finding salvage in standardization? Structural and longitudinal evaluation of the patient health questionnaire anxiety and depression scale in a UK representative sample

Abstract Objectives Some research funders mandate the use of the Patient Health Questionnaire‐9 (PHQ‐9) and Generalized Anxiety Disorder‐7 (GAD‐7) as independent measures of depression and anxiety. This study examined their independence in a UK representative sample by testing th...