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The confidence interval of the combined effect size in Figure 1 does not include zero, i.e., in case of a confidence level of 95% the p-value is smaller than...

Both partial and semi-partial correlations are used to compare results of studies that have used different regression models...

Correlational data

Workbooks 3 and 4 have a rather large number of different input formats, see Figure 55 for Workbook 3 and Figure 56 for Workbook 4. Hence...

The required input for this workbook is not a point estimate with a standard error (such as in Workbook 1). Instead, the user must...

Meta-Essentials applies the inverse variance weighting method with, in the random effects model, an additive between-studies variance component based on...

The Calculations sheet of Meta-Essentials contains all calculations underlying the output in the other sheets. It can be accessed by...

The final part of the Publication Bias Analysis sheet contains several estimates of Failsafe numbers. To illustrate this, imagine that for any study...

Normal Quantile plots (or Q-Q-plots) are also used to assess the normality of data (Wang & Bushman, 1998). The expectation is that...

The basic idea of the Galbraith plot or radial plot (Galbraith, 1988) is to run an unweighted regression of z-scores on the inverse of the...