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Chemistry, 21.03.2020 11:56 emilybabydog

Suppose you are interested in how subjects perform under different temperature conditions. Subjects work in one of three rooms. The rooms differ only with respect to temperature. You instruct all subjects to solve the same jigsaw puzzle. You then measure how long it takes each subject to finish. In the research described above, differences in temperature conditions serves as which of the following:
observation
internal attribute
independent variable
dependent variable

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