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That post starts with "Please don’t read on until you’ve taken it, since this could bias your results." But I checked the data I received before and after I po
by Yvain 9y ago
That post starts with "Please don’t read on until you’ve taken it, since this could bias your results."
But I checked the data I received before and after I posted that, and the birth order effects are about equally strong throughout.
- searealist 9y agoAnd what % was before and what % after ?
- Yvain 9y ago5,523 before December 25, when I posted the pre-registrations. 2,254 after. Of the before-posting people, 2199 had exactly one sibling, and 71.1% of those were the older. Of the after-posting people, 776 had exactly one sibling, and 72.3% of those were older. A t-test revealed no difference between the two groups, p = 0.527.
- darepublic 9y agoThe prevalence of older siblings could be because of other reasons perhaps? Only people born with a certain period of time are likely to be interested in transhumanism and of those more are older siblings than otherwise.
- AstralStorm 9y agoThe drawback of any survey driven study, right?
- losvedir 9y agoHe explained that, too. The average age of all the older siblings that responded and the the average age of all the younger siblings that responded were within 1 year.
- deleted 9y ago[deleted]
- itronitron 9y agoit may also reflect that firstborns just have more of an interest in birth order effects so were more likely to respond
- theptip 9y agoI'd have preferred if Scott posted an encrypted timestamped message on Pastebin before the survey (to register his intended experiments), and released the keys after the survey; "this could skew your results please don't read" is not particularly well controlled.
- wging 9y agoYou don't really need to encrypt - just one-way hash. (Though if you count that as 'encryption' for this purpose, okay.)