Smith, Glass, and Miller (1980) conducted a comprehensive summary of hundreds of experiments that used random assignment. What did their results suggest about the general effectiveness of psychotherapy?

Suppose you are applying the research methodology used by Smith, Glass, and Miller (1980) to evaluate the general effectiveness of a new psychological treatment. Arrange the following steps in the correct chronological order to follow their synthesis design.

Analyze the components of Smith, Glass, and Miller's 1980 landmark study by matching each methodological feature or finding to its specific scientific role in validating the effectiveness of psychotherapy.

It is a scientifically sound evaluation to conclude that Smith, Glass, and Miller's 1980 study provides a more robust demonstration of psychotherapy's general effectiveness than any single experiment could, given that their work was a comprehensive summary of hundreds of experiments utilizing random assignment.

According to Smith, Glass, and Miller's 1980 comprehensive summary of psychotherapy research, what specific design feature did the hundreds of evaluated experiments utilize to compare treatment and control conditions?

Smith, Glass, and Miller's 1980 conclusion about the high effectiveness of psychotherapy was based on conducting a single, newly designed experiment with a massive sample size.

In their landmark 1980 summary of hundreds of psychotherapy experiments, Smith, Glass, and Miller found that approximately _____% of participants who received psychotherapy showed greater improvement than the average participant in a control group.

Match each researcher's methodological goal in studying psychotherapy with the corresponding design decision or finding from the Smith, Glass, and Miller (1980) study.

An investigator analyzing the methodology of Smith, Glass, and Miller's (1980) study wants to determine if the findings are internally valid. They analyze the summary and note that the main conclusion—that psychotherapy is highly effective—was derived by reviewing hundreds of experiments that compared treatment and control groups using _____ assignment.

To evaluate the strength of evidence for psychotherapy's effectiveness in Smith, Glass, and Miller's (1980) study, a psychologist must systematically assess the study's design and findings. Order the steps of this evaluation from verifying initial study selection criteria to drawing a final conclusion.