Researchers studied whether health information disseminated verbally only or verbally with a graph would affect patients

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Researchers Studied Whether Health Information Disseminated Verbally Only Or Verbally With A Graph Would Affect Patients 1 (70.77 KiB) Viewed 135 times

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Researchers studied whether health information disseminated verbally only or verbally with a graph would affect patients' ratings about medication effectiveness (Tal & Wansink, 2014). The researchers predicted that presenting medication information with a graph would increase ratings of effectiveness. Half of the participants were randomly assigned to hear information about the medication verbally only; while the other half were presented with a graph while hearing the same information. Participants rated the effectiveness of the medication on a scale of 1 - 9, with 9 indicating a higher level of effectiveness. The researchers reported "Participants in the graph condition expressed greater belief in the claims, rating the medication as more effective (M=6.83) than did participants given a verbal description only, (M=6.12), (59)= -2.10, p <.05. 1. What type of test did the researchers use? name of test: Yes/No: 2. Were the results significant? What critical value did you CV: use? positive, negative, or positive and negative: 3. How many participants were in this experiment? N: Mean of Graph: 4. What were the means of the two groups? Mean of Verbal only: 5. Calculate eta-squared. What is your interpretation (small, medium, or large)? eta-squared: Interpretation:

Given a standardized normal distribution (with a mean of O and a standard deviation of 1), complete parts (a) through (d) below. Click here to view page 1 of the cumulative standardized normal distribution table. Click here to view page 2 of the cumulative standardized normal distribution table. a. What is the probability that Z is between - 1.55 and 1.88? The probability that Z is between - 1.55 and 1.88 is 9094 (Round to four decimal places as needed.) b. What is the probability that Z is less than-1.55 or greater than 1.88? The probability that is less than - 1.55 or greater than 1.88 is 0.0906 (Round to four decimal places as needed.) c. What is the value of Z If only 2% of all possible Z values are larger? The value of only 2% of all possible Z values are larger is (Round to two decimal places as needed.)