Clinicians need guidance in selecting schizophrenic patients for individual psychodynamic psychotherapy. The purpose of the present study was to investigate whether a 17-item questionnaire (APPP) for quantification of suitability for psychotherapy could predict continuance, adherence and outcome from individual dynamic psychotherapy with patients with schizophrenic psychoses. Therapists rated 72 first-episode patients with schizophrenic psychoses in the initial interview. The scores were then correlated to the course of therapy and change in symptoms. APPP was tested to have good psychometric characteristics and had a satisfactory interrater reliability ((ICC,2)=0.70), when four raters scored eight videotaped interviews with eight different patients. The scale scores were highly correlated to "therapeutic alliance" measured by the Working Alliance Inventory (WAI) and the Active Engagement Scale (AES). APPP suitability gave a good early prediction of adherence to therapy (continued in therapy at least 12 months and a satisfactory number of sessions), but had no predictive value of symptomatic improvement or improved social function after 1 year.