I vaguely remember (but can’t now find) previous discussion that taking http://iqtest.dk more than once would skew scores upward from training effect. Any idea how large that effect might be?
Not really, it varies per test. (Such norms and info is what professional psychologists & psychometricians are paying for when they pay through the nose for IQ tests.)
My general impression from looking at before-afters for the RAPM/BOMAT-using dual n-back studies was that the controls would improve on average something like half a question, which would translate to maybe 2 or 3 points?
Hmm. I got 138 yesterday, and I’m pretty sure the 120 I remember entering in last year’s survey was from that same online test. Wondering what’ s up with that.
I vaguely remember (but can’t now find) previous discussion that taking http://iqtest.dk more than once would skew scores upward from training effect. Any idea how large that effect might be?
Not really, it varies per test. (Such norms and info is what professional psychologists & psychometricians are paying for when they pay through the nose for IQ tests.)
My general impression from looking at before-afters for the RAPM/BOMAT-using dual n-back studies was that the controls would improve on average something like half a question, which would translate to maybe 2 or 3 points?
Hmm. I got 138 yesterday, and I’m pretty sure the 120 I remember entering in last year’s survey was from that same online test. Wondering what’ s up with that.