In this study, 20 outcome measures were recorded, which derived from 7 experimental test procedures. To minimise dependencies between these outcome measures, all 20 outcome measures were checked for correlations among each other. We selected 10 outcome measures (see S4 Table and S4 Fig), which had a correlation coefficient
Regarding the allocation of the experimenters to the 2 experimental designs in each laboratory, several combinations were possible. It might be plausible that the results are dependent on the specific experimenters selected for each experimental design. Therefore, to gain more confidence in the conclusion when comparing both experimental designs, we repeated the previously outlined analyses (I. and II.) for 10 randomly chosen, alternative allocations of the experimenters to the experimental designs (for details, see S3 Table).
The allocation of the experimenters to the experimental designs was randomly chosen. Thus, several different combinations of experimenters selected in each laboratory and allocated to each design are theoretically possible. To check whether alternative allocations of the experimenters would have altered the results when comparing both experimental designs, we repeated the analyses on basis of 10 additionally, randomly selected, alternative allocations (for details, see S3 Table). 2b1af7f3a8