Publications
8 shownMeta-analysis of psychotherapy outcome studies.
Results of nearly 400 controlled evalua- tions of psychotherapy and counseling were coded and integrated statistically. The findings provide convincing evidence of the efficacy ...
Note on Rank Biserial Correlation
variables, n consecutive ranks, a dichotomy, a trichotomy, etc. In this paper we shall be concerned with developing a measure of the correlation between one variable comprising ...
Meta-Analysis of Research on Class Size and Achievement
THERE IS No POINT IN RECORDING THE obvious about class size: that teachers worry about it more than nearly anything else, that administrators want to increase it, that it is eco...
Frequent Co-Authors
Researcher Info
- h-index
- 8
- Publications
- 8
- Citations
- 10,707
- Institution
- University of Illinois System
External Links
Identifiers
- ORCID
- 0000-0002-8422-7020
Impact Metrics
h-index
8
h-index: Number of publications with at least h citations each.