The ratio of the test set size relative to the training set size + the test set size varied from 0.1 to 0.6, and 100 random trials were undertaken for each test set size.
Unfortunately, the reporting of sample size elements specific to these random trials remains below that necessary for transparent reporting.
For both age groups, error rates were greater during random trials than during sequential trials (Main Effect Trial Type: F(1) = 22.29, p<0.05; Mean Random = 6.05±0.34, Mean Sequential = 4.15±0.34).
The divergence of the interim results from two large random screening trials for prostate cancer mortality, one in Europe and the other in the United States, confuses practitioners and raises questions about the trials' credibility.
The RTs for each response position in the baseline and random test trials for males and females are depicted in Fig. 3.
Quasi-random allocation trials (for example, based on hospital number) were included in the analysis.
In a random trial, 30% of those who risked a penalty for failure achieved their goal, compared with only 5% in the control group.
35 We also repeated these analyses with different meta-analytic models (random trial intercept; random treatment effect; fixed trial-specific effects for baseline).
Critically, due to random selection of trials for scrambling for each participant, there was no bias in which items participants would see intact and which they would see scrambled, and statements would only ever be seen once by each participant (either scrambled or intact).
