5.docx - o Question 1 0 out of 1 points Which of these...

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5.docx

oQuestion 10 out of 1 pointsWhich of these illustrates the APA format for reporting statistically significant results for an independent-samples t test?Selected Answer:t(N – 2) = 2.33, p< 0.05Answers:t(N – 1) = 2.33, p< 0.05t(19) = 2.33, p < 0.05t(19) = 2.33, > 0.05t(N – 2) = 2.33, p< 0.05
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oQuestion 20 out of 1 pointsResearchers were interested in whether relaxation training decreases the number of headaches a person experiences. They randomly assigned 20 participants to a control group (no relaxation training) or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. The independent variable in this study is:
oQuestion 31 out of 1 pointsIn a(n) _____, a within-groups design with two groups, is used to compare the distribution of mean difference scores.
oQuestion 41 out of 1 pointsIf two sample means come from the exact same distribution, then the distribution of differences between means against which they will be compared should have a mean of:
oQuestion 51 out of 1 pointsUnnithan, Houser, and Fernhall (2006) were interested in whether playing the game Dance Dance Revolution (DDR) affected the heart rate of overweight and non-overweight adolescents differently. A group of 22 adolescents, 10 classified as overweight and 12 as not overweight played DDR for 12 minutes, during which time the researchers measured each participant's heart rate. Which statistical test should the researchers use to analyze their data?Selected Answer:independent-samples t testAnswers:single-sample t testz testindependent-samples t testdependent-samples t test
oQuestion 60 out of 1 pointsTo calculate a confidence interval for an independent-samples t test, use the difference between the means for the samples and the _____.

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