This chapter reviews the historical and current trends in the study of therapist effects. We
discuss statistical methods for investigating therapist effects, with a primary focus and …

Outcome measurement in the field of psychotherapy has developed considerably in the last
decade. This review discusses key issues related to outcome measurement, modeling, and …

This chapter sets out the current status of the evidence-base for the efficacy and
effectiveness of psychological therapies. First, methods for eliciting and synthesizing …

Background Chronic non‐cancer pain, a disabling and distressing condition, is common in
adults. It is a global public health problem and economic burden on health and social care …

This chapter addresses fundamental issues of change in psychotherapy: how to measure,
monitor, predict change, and provide feedback on treatment outcome. The chapter starts …

In recent years there has been a shift toward greater recognition of the client's role as an
active participant in psychotherapy. In 1994 Bergin and Garfield said,“Another important …

The dose-response effect refers to the relationship between the dose (eg, length, frequency)
of treatment and the subsequent probability of improvement. This systematic review aimed to …

In this chapter, the status of empirical evidence on the efficacy and effectiveness of
psychotherapy—mainly with adult outpatients—is reviewed. A variety of related issues …

Loneliness has been described as a common source of discomfort based on a subjective
discrepancy between the actual and desired social situation. For some people this feeling …

Objective: This study examined whether therapists' facilitative interpersonal skills (FIS)
would prospectively predict the outcomes of therapies that occurred more than one year …