This dataset tracks 14 days of longitudinal mood dynamics collected from a general population sample using the Patient Health Questionnaire-9 (PHQ-9). It captures daily fluctuations in depressive symptoms across nine standardized diagnostic criteria for clinical depression in an ambulatory setting.
Use Cases
- Analyze temporal stability of depressive symptoms using the 14-day longitudinal PHQ-9 scores
- Train predictive models to identify mood shifts based on daily item-level responses
- Correlate individual PHQ-9 item scores to determine which symptoms drive overall depression severity in a general population
Strengths
- Contains 14 consecutive days of mood assessments per participant
- Includes scores for all nine items of the PHQ-9 depression scale
- Captures ambulatory mood dynamics within a non-clinical general population