Temporal exploration of the interpersonal theory of suicide among adolescents during treatment.

Results are partially consistent with the ITS, but in contrast to the theory, the most consistent predictor of suicidal ideation was prior suicidal ideation. Prior levels of hopelessness, belongingness, and burdensomeness did influence suicidal ideation at some time points, but the most consistent effects were from hopelessness toward burdensomeness. Theoretical and treatment implications for these findings are discussed, particularly the need to directly address hopelessness in treatment. (PsycInfo Database Record (c) 2022 APA, all rights reserved).