• Entry
  • Reader's guide
  • Entries A-Z
  • Subject index

“Meta-Analysis of Psychotherapy Outcome Studies”

The article “Meta-Analysis of Psychotherapy Outcome Studies,” written by Mary Lee Smith and Gene Glass and published in American Psychologist in 1977, initiated the use of meta-analysis as a statistical tool capable of summarizing the results of numerous studies addressing a single topic. In meta-analysis, individual research studies are identified according to established criteria and treated as a population, with results from each study subjected to coding and entered into a database, where they are statistically analyzed. Smith and Glass pioneered the application of meta-analysis in research related to psychological treatment and education. Their work is considered a major contribution to the scientific literature on psychotherapy and has spurred hundreds of other meta-analytic studies since its publication.

Historical Context

Smith and Glass conducted their research both in ...

Loading
  • Loading...
locked icon

Sign in to access this content

Get a 30 day FREE TRIAL

  • Watch videos from a variety of sources bringing classroom topics to life
  • Read modern, diverse business cases
  • Explore hundreds of books and reference titles