The development and initial validation of self-report measures of ICD-11 depressive episode and generalized anxiety disorder: The International Depression Questionnaire (IDQ) and the International Anxiety Questionnaire (IAQ).
Mark ShevlinPhilip HylandSarah ButterOrla McBrideTodd K HartmanThanos KaratziasRichard P BentallPublished in: Journal of clinical psychology (2022)
The IDQ and the IAQ are short, easy to use, self-report measures aligned to the new and updated ICD-11 diagnostic descriptions. This study provides initial evidence that the scales produce scores that are reliable and valid.