Table 9. Required sample size computed with snapshot hybrid based on characteristics of the original study as described in Maxwell et al. [8]; ro = .243 and N = 80.
With original study | Without original study | |
---|---|---|
ρS = 0 | 587 | 645 |
ρS = 0.1 | 709 | 664 |
ρS = 0.3 | 223 | 215 |
ρS = 0.5 | 284 | 116 |
Sample size was computed with snapshot hybrid for a desired posterior model probability of a = 0.75 and the desired probability of observing a posterior model probability larger than a was b = 0.8. The hypothesized effect size was equal to ρS = 0 (no effect), 0.1 (small), 0.3 (medium), and 0.5 (large). The penultimate column refers to the required sample size where information of the original study is included and the last column where this information is excluded.