| Abstract: | Critiques J. T. Landman and R. M. Dawes's (see record 1982-30838-001) reanalysis of the M. L. Smith and G. V. Glass (see record 1978-10341-001) psychotherapy outcome study. It is suggested that the Landman and Dawes study has 2 serious sampling problems. The first is the mismatch between the population sampled from and the population to which the sample, after reanalysis, is compared. Also, there is a flaw in the sampling procedure itself. It is further suggested that the conceptual shortcoming of the reanalysis turns around Landman and Dawes's definition of well-controlled studies. (10 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
