4 ms·
for sure.. but I expect the real results to be worse (though this is purely speculative on my part), as I can only imagine people with steeper intellectual decl
by make3 8y ago
for sure.. but I expect the real results to be worse (though this is purely speculative on my part), as I can only imagine people with steeper intellectual decline being more likely to drop out
- ojbyrne 8y agoIts mentioned in the paper: "However, recruitment to and retention in cognitive ageing studies is also affected by self selection to volunteer among better educated individuals who are ageing well, which is also true of our study. Thus, the findings might be biased towards those individuals with higher cognitive performance."
- mirimir 8y agoThanks for finding that. I was about to read the paper, looking for something like that.
- RyanOD 8y agoI immediately thought the same. Then I thought about for a bit longer and quickly came up with an equal number of reasons why participants experiencing more rapid mental decline might stick it out. Really no way to know.
- gweinberg 8y agoMaybe, but given the huge dropout rate I don't see how we can conclude anything from this study. Of course, that would also be true if it had reached the opposite conclusion.
- cjbprime 8y agoOr people with less decline are more busy, have less motivation to stay in touch with a study that doesn't feel relevant since they're healthy?