Meta-analysis is used to study outcomes of psychotherapy and evaluate effectiveness. In 1952, Hans Eysenck conducted one of the earliest meta-analysis on the improvement of neurotic disorders. What were his findings?
A)One-third of neurotics improved over a two-year period regardless of treatment
B)Two-thirds of neurotics improved over a two-year period regardless of treatment
C)Two-thirds of neurotics improved over a two-year period with treatment
D)One-half of neurotics improved over a one-year period without treatment

Question

Quizplus · Accepted Answer

Eysenck reported in his study that two-thirds of neurotics improved over a two-year period with or without treatment. He also noted that treatment seemed to have a negative effect on improvement when compared to non-treatment.

Meta-Analysis Is Used to Study Outcomes of Psychotherapy and Evaluate