"refers to researchers' assignment of participants to groups by chance, to reduce the likelihood that an experiment's results will be due to preexisting differences between groups."
True/False

This is when a researcher randomly assigns participants to groups randomly and without any preference or bias, in order to reduce the probability of the result being influenced by preexisting variation between groups. Hence if the question above asks if random assignment "refers to researcher'....." as stated, then the answer is True.

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"refers to researchers' assignment of participants to groups by chance, to reduce the likelihood that an experiment's results will be due to preexisting differences between groups." True/False

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"refers to researchers' assignment of participants to groups by chance, to reduce the likelihood that an experiment's results will be due to preexisting differences between groups."
True/False