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QUESTION 1 9 4 points Save Answer Values such as Cohen's d are used to measure C' the risk of committing a Type I error (5 the size of a treatment effect 0 the statistical signicance level D the probability of retaining a false null hypothesis f) the validity of a hypothesis test QUESTION 20 4 points Save Answer One advantage of a randomized experiment is there are rarely problems due to: (j social desirability C demand characteristics T' participant reactivity C', measurement error (5 none of the above