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418-Exam 1 review-1 - Sta.s.csandresearchdesign Reviewexam1...

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Review‐ exam 1 Sta.s.cs and research design
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Exam facts 37 ques.ons 19 mul.ple choice 5 true or false/short answer 13 long answer/calcula.on
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Exam .ps Do the prac.ce exam! Be sure to know everything I cover today Be ready to provide examples!
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Which of the following is an example of an instrumenta.on threat to validity in a study about the effects of a weight loss pill? A. The control group and experimental group are weighed in separate rooms. B. The control group consists of women and the experimental group consists of men. C. The researcher encourages the par.cipants to eat less and work out. D. The control group consists of non‐athle.c people and the experimental group consists of athletes.
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Johnny is running an experiment. He is tes.ng lemurs to determine whether the drug he developed will help them run faster He randomly assigns 30 lemurs into two groups. One group will receive the drug and the other will not Over the course of the next few months Johnny conducts a weekly test measuring the .me it takes each lemur to complete his given task
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