Research Checks interrogate newly published studies and how they're reported in the media.
at the start of the study , then yearly for three years, of which only three were reported in this paper:
ModBent, measuring object recognition. Participants were given 20 prompts with a shape and then had to select the correct match from a pair of similar prompts. After this, they were prompted with 40 shapes in turn and had to indicate whether each was included in the original 20 or not All the effect sizes reported are very small. The largest effect is for the participants' immediate recall at one year, which was 0.07 – a value that isAlso of note is that both the multivitamin and placebo groups had higher immediate word recall scores at one year , although the multivitamin group's increase was significantly larger., the increase in word recall scores was described as a"typical learning effect".
The authors detail their study's major limitation well: it is not very generalizable, as it used"mostly white participants" who had to be very computer literate, and, one could argue, would be quite well-functioning cognitively.
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