Mean is the mean sample size across countries.
The mean sample size is 536.02, with the vast majority using firm-level data.
The mean sample size of presentations with a corresponding publication was 154 (standard error [SE] =27) while for presentations without corresponding publications the mean sample size was 93 (SE = 13).
We achieved a mean sample size of 53.9 % (31.4 91.7 %) of the total number of nurses employed at each hospital.
In this work, authors also incorporated a sequential probability ratio test for estimating the mean sample size of attack.
The mean sample size was 95 participants (range 16 to 579) per study; 10 studies were considered to be at low risk of bias.
In a controlled random design experiment it is often desirable to estimate an underlying regression function with assigned risk, then the optimality is understood as a minimal mean sample size.
When designing future clinical studies of amblyopia treatment, issues such as regression to the mean, sample size and trial duration must be considered, since each may impact study results and conclusions.
In addition, it has been shown that for the estimation of cross-level interaction effects, it is the mean sample size in each group (here: the number of immigrant respondents per country) rather than the number of groups which matters most in terms of statistical power (Mathieu, Aguinis, Culpepper, & Chen, 2012).
The mean sample size was 44.3±25.3 per trial.
