Psychological Phenomena and Processes Commons^™

Why Are Some Cases Not On Track? An Item Analysis Of The Assessment For Signal Cases During Inpatient Psychotherapy, Thomas Probst, Maria Kleinstäuber, Michael J. Lambert, Karin Tritt, Christoph Pieh, Thomas H. Loew, Reiner W. Dahlbender, Jamie Delgadillo

Psychology Faculty Publications

Within the Routine Outcome Monitoring system “OQ-Analyst,” the questionnaire “Assessment for Signal Cases” (ASC) supports therapists in detecting potential reasons for not-on-track trajectories. Factor analysis and a machine learning algorithm (LASSO with 10-fold cross-validation) were applied, and potential predictors of not-on-track classifications were tested using logistic multilevel modeling methods. The factor analysis revealed a shortened (30 items) version of the ASC with good internal consistency (α = 0.72–0.89) and excellent predictive value (area under the curve = 0.98; positive predictive value = 0.95; negative predictive value = 0.94). Item-level analyses showed that interpersonal problems captured by specific ASC items (not …