Assuming that they are using the same alpha level explain how George could be wrong. Given the means in their studies, what two other factors could lead Elaines results to be significant whe Georges are not?

Page 5 of 6 3. Elaine and George are both taking the a psychology lab course, and each have run their own research projects looking at the effects of cooperative study groups on test performance. Elaine's results indicate that participants in the control group (randomly assigned to study alone) averaged 75 (out of 100) on the exam, whereas the experimental group (randomly assigned to work in study groups), averaged 80. George runs a similar study and finds that the control and experimental group scored 70 and 90, respectively. A) (6 points) George brags that his results are more likely to be statistically significant than Elaine's results. Assuming that they are using the same alpha level, explain how George could be wrong. Given the means in their studies, what two other factors could lead Elaine's results to be significant, when George's are not? B) (4 points) Can George at least brag that his effect size is bigger? Why or why not? 4. (5 points) Newman and Kramer are sitting in the coffee shop, reading the latest issue of the Journal of Personality and Social Psychology and discussing the results of a particular study published in the issue. This paper reports a significant correlation of .10 between the number of friends participants have and their overall mood, such that people with more friends tend to have more positive daily moods. Kramer is quite interested in this finding, and resolves to make lots of new friends so that his mood will improve. Newman, being a sophisticated methodologist, would likely temper Kramer's enthusiasm with what cautions about this research finding