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
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.