COVID-19 presents significant social, economic, and medical challenges. Because COVID-
19 has already begun to precipitate huge increases in mental health problems, clinical …

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 …

Mental health symptoms and disorders are common among elite athletes, may have sport
related manifestations within this population and impair performance. Mental health cannot …

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 …

Applied behavior analysis (ABA), the practical wing of behavior science, is defined by its
focus on socially significant behavior and characterized by an assumed relevance to every …

Single-case designs refer to a methodological approach that can be used to investigate the
effectiveness of treatment with the individual client. The designs permit scientifically valid …

Background Scientists have developed evidence‐based interventions that improve the
symptoms and functioning of youth with psychiatric disorders; however, these interventions …

Currently, in the United States and worldwide, the vast majority of children and adolescents
in need of mental health services receive no treatment. Although there are many barriers, a …

Tactics of Scientific Research (Sidman, 1960) provides a visionary treatise on single‐case
designs, their scientific underpinnings, and their critical role in understanding behavior …

In this paper, we review some dimensions of feasibility research. Feasibility research
focuses on the intervention process and addresses questions about whether and how an …