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Question 2 7.8 pts Jean is a virologist who recognizes that a number of factors can influence whether people get sick or not, including
Question 2 7.8 pts Jean is a virologist who recognizes that a number of factors can influence whether people get sick or not, including exposure to a virus and expectations about getting sick. To disentangle some of these influences, Jean recruits healthy university students to participate in a study focused on better understanding flu symptoms. Participants who agree to participate in the study are randomly assigned to one of four experimental conditions. In one condition, participants are directly sprayed in the face with water mixed with a live flu virus (high expectation of exposure, live virus). In another condition, participants are directly sprayed in the face with just water (high expectation of exposure, no virus). In a third condition, participants are not sprayed in the face at all. Instead, they are exposed to the flu virus without their awareness (low expectation of exposure, live virus). And finally, in a fourth condition, participants are not sprayed in the face, nor are they exposed to the flu virus (low expectation of exposure, no virus). Question: A power analysis indicates that the researcher will need 50 participants per condition to achieve adequate statistical power. How many total research participants are needed? 150 200 50 300 100
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