Mathematics, 13.08.2021 03:40 JuJu4710
A researcher is interested in the effects of chocolate on cognitive performance. In the study, participants were instructed to eat either zero bars of chocolate or two bars of chocolate. Then, to measure cognitive performance, participants engaged in both a speeded-reaction-time task and a cognitive control task, both of which were designed to measure the same construct (i. e., cognitive performance). How many independent variables did the researcher manipulate? Group of answer choices 1
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A researcher is interested in the effects of chocolate on cognitive performance. In the study, parti...
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