this post was submitted on 31 Jul 2023
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The 1st study https://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1002605 mentions that "Students chose their summer housing preferences on a first-come, first-serve basis in a manner that was not expected to be associated with exposure or outcome.", but couldn't this be effected by wealth, and effect the results?
Because they're effecfively measuring the change in the students' performance in the STROOP and ADD tests before and after a heat wave, baseline factors such as wealth and income should be controlled for.
They note in the results that in the initial tests there was no significant difference between both groups' results.