Notes:
The conclusion must be that presentiment effects are not restricted to the experiments that parapsychologists are doing but are also to be found in mainstream data.
For mainstream researcher a difficult dilemma arises.
Either they acknowledge the existence of this anomaly and can correct for it which will improve their effectsizes by 10-30% OR they will deny it and thereby have less power in their experiments.
What I hope is that they too will be intrigued like I was 30 years ago and start investigate this effect but……...