Description Usage Format References See Also
Dataset of studies of effect of open vs. traditional education on creativity. Standard dataset to illustrate selection models in meta-analysis.
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A data frame with 10 observations on the following 5 variables.
i
Study number.
N
Sample size of study.
theta
Estimated effect size.
t
t test statistic, t = θ / √{2 / N}.
q
Defrees of freedom, q = 2 N - 2.
Dear, Keith B.G. and Begg, Colin B. (1992). An Approach for Assessing Publication Bias Prior to Performing a Meta-Analysis. Statist. Sci., 7(2), 237–245.
Hedges, L. and Olkin, I. (1985). Statistical Methods for Meta-Analysis. Academic, Orlando, Florida.
Iyengar, S. and Greenhouse, J.B. (1988). Selection models and the file drawer problem (including rejoinder). Statist. Sci., 3, 109–135.
This dataset is analyzed in the help file for DearBegg
.
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