Michael J. Lambert

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Client-focused research systems have been developed to monitor and provide feedback information about clients’ progress in psychotherapy as a method of enhancing outcome for those who are predicted to be treatment failures. In the current study, the authors examined whether feedback regarding client progress and the use of clinical support tools (CSTs)(More)
Enhancing treatment outcomes for clients who are predicted to deteriorate before leaving treatment has important implications for quality of client care. The effects of three interventions aimed at reducing client deterioration were examined in a sample of 1,374 clients whose outcome was contrasted across experimental groups and with a no-feedback/ archival(More)
Patient-focused research attempts to provide information that answers the question: Is this treatment benefiting this patient? Although several systems have been developed to monitor and provide feedback about a patient's response to psychotherapy, few if any have been tested empirically. The current study divided 609 patients into four groups (two(More)
A program of research aimed at improving the quality of psychological interventions is described. Data from over 10,000 patients were analyzed to understand the association between number of treatment sessions and clinically significant improvement. In addition to a potential dose-response relationship, typical recovery curves were generated for patients at(More)
Many branches of medicine rely heavily on lab tests to monitor client treatment response and use this information to modify their treatment. By contrast, those who offer psychological interventions seldom rely on formal assessments (lab tests) to monitor their clients' response to treatment. Data are presented that demonstrate that clinicians rarely(More)
While highly effective, psychotherapy outcome studies suggest 5-14% of clients worsen while in treatment and that therapists are unable to identify a substantial portion of such cases. Methods to systematically collect feedback from psychotherapy clients are discussed and two systems for monitoring treatment response, feeding back this information, and(More)
This study examined sources of therapist effects in a sample of 25 therapists who saw 1,141 clients at a university counseling center. Clients completed the Outcome Questionnaire-45 (OQ-45) at each session. Therapists' facilitative interpersonal skills (FIS) were assessed with a performance task that measures therapists' interpersonal skills by rating(More)
It is recommended that an estimate of clinical significance be included in all psychotherapy outcome studies and that this estimate be based on the work of Jacobson and Truax (1991). The concept of clinical significance is defined and put in the context of broadly accepted statistical methods along with its advantages and a rationale for using the Jacobson(More)
Clinically significant change refers to meaningful change in individual patient functioning during psychotherapy. Following the operational definition of clinically significant change offered by Jacobson, Follette, and Revenstorf (1984), several alternatives have been proposed because they were thought to be either more accurate or more sensitive to(More)