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The 10 most important of all available features for PHQ-2 prediction. Determined by a Random Forest Regressor with a number of 50 different decision trees. In particular, the EMA data have a great influence on the prediction result: Center for Epidemiological Studies’ Depression Scale (CESD), negative affect, Behavioral Activation for Depression Scale-Short Form (BADSSF), Personality Dynamics Diary (PDD).
