Mathematics, 06.09.2019 19:30 DrDre02
Astudy is designed to test the effect of noise levels on the exam performance of students. the researcher gathers 150 male students and 150 female students from the same psychology course and randomly assigns each student to take an exam in a room with one of three noise treatments: no noise, construction noise, and human chatter (talking) noise. what is the blocking variable in this study?
Answers: 2
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