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Direct linkSwanson, H. Lee – Journal of Learning Disabilities, 2012
A meta-analysis by Tran, Sanchez, Arellano, and Swanson (2011) of the published RTI literature found that the magnitude of effect size (ES) between responders and low responders at posttest was significantly moderated by the pretest ES and the type of dependent measure administered, whereas no significant moderating effects were found in the mixed…
Descriptors: Evidence, Intervention, Effect Size, Pretests Posttests
Raudenbush, Stephen W.; Reardon, Sean F.; Nomi, Takako – Journal of Research on Educational Effectiveness, 2012
This article presents the authors' rejoinder to the comments of Howard Bloom, Derek Neal, and Mike Seltzer on their article. Their commentary focused foremost on the advantages and disadvantages of using Options A, B, or C in using instrumental variables in multisite trials. Of interest are the quantities one can estimate and test in each case,…
Descriptors: Reader Response, Predictor Variables, Multitrait Multimethod Techniques, Experimental Programs
Bosch, Holger; Steinkamp, Fiona; Boller, Emil – Psychological Bulletin, 2006
H. Bosch, F. Steinkamp, and E. Boller's (see record 2006-08436-001) meta-analysis, which demonstrated (a) a small but highly significant overall effect, (b) a small-study effect, and (c) extreme heterogeneity, has provoked widely differing responses. After considering D. B. Wilson and W. R. Shadish's (see record 2006-08436-002) and D. Radin, R.…
Descriptors: Meta Analysis, Publications, Bias, Models
Radin, Dean; Nelson, Roger; Dobyns, York; Houtkooper, Joop – Psychological Bulletin, 2006
H. Bosch, F. Steinkamp, and E. Boller's (see record 2006-08436-001) review of the evidence for psychokinesis confirms many of the authors' earlier findings. The authors agree with Bosch et al. that existing studies provide statistical evidence for psychokinesis, that the evidence is generally of high methodological quality, and that effect sizes…
Descriptors: Effect Size, Sample Size, Reader Response, Review (Reexamination)
Wilson, David B.; Shadish, William R. – Psychological Bulletin, 2006
The H. Bosch, F. Steinkamp, and E. Boller (see record 2006-08436-001) meta-analysis reaches mixed and cautious conclusions about the possibility of psychokinesis. The authors argue that, for both methodological and philosophical reasons, it is nearly impossible to draw any conclusions from this body of research. The authors do not agree that any…
Descriptors: Hypothesis Testing, Meta Analysis, Psychological Studies, Effect Size
Kraemer, Helena Chmura – Psychological Methods, 2005
R. Rosenthal and D. B. Rubin (2003) proposed an effect size, r-sub(equivalent), to be used when (a) only sample size and p values are known for a study, (b) there are no generally accepted effect size indicators, or (c) sample sizes are so small or the data so non-normal that the directly computed effect sizes would be more misleading than the…
Descriptors: Effect Size, Sample Size, Reader Response, Criticism
