title	ML-CAT Adaptive PHQ-8 and GAD-7 Assessment
emoji	🧠
colorFrom	blue
colorTo	green
sdk	docker
app_port	7860
pinned	false
license	mit
short_description	ML-CAT adaptive PHQ-8 & GAD-7 assessment

ML-CAT: Adaptive PHQ-8 & GAD-7 Assessment

Machine Learning-Based Computerized Adaptive Testing

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What this app does

This Shiny app implements ML-CAT for PHQ-8 (depression) and GAD-7 (anxiety) using the M5P model tree. Each patient answers only 3–4 adaptive items instead of the full scale, with near full-scale accuracy:

Scale	r	R²	MAE
PHQ-8	0.996	0.979	0.756
GAD-7	0.997	0.985	0.610

How to use

1. Select GAD-7 (anxiety) or PHQ-8 (depression)
2. Answer 3–4 adaptive questions
3. View estimated score and severity level
4. Download results as CSV or Excel

Citation

TBA.

⚠️ For clinical monitoring purposes only. Does not replace clinical judgment.