Problem Set 3: One-Way randomized ANOVA
Research Scenario: A health psychologist is looking into theeffects of different kinds of exercise on stress. She dividesvolunteers into three exercise groups: high-intensity intervaltraining (HIIT) (n=8), yoga (n=8), or running (n=8). The volunteersparticipate in a set number of hours of the exercise for a month,after which the psychologist measures their stress levels on ascale of 1-40 where lower scores = lower stress, and higher scores= higher stress. The scores for each group are shown in the tablebelow. Input the data into SPSS (remember you will enter the dataonly using 2 columns - one for group (make sure you label thevalues) and one fore stress. Conduct a one-way ANOVA to determinethe effect of these different exercises on stress levels.
HIIT | 16 | 25 | 19 | 11 | 17 | 11 | 15 | 27 |
YOGA | 19 | 21 | 22 | 23 | 14 | 24 | 27 | 15 |
RUNNING | 19 | 28 | 33 | 24 | 26 | 30 | 17 | 21 |
11) Paste relevant SPSS output
12) Create an appropriate graph to display this data.
13) Write an APA-style Results section based on your analysis.All homework \"Results sections\" should follow the examples providedin the presentations and textbooks. They should include thestatistical statement within a complete sentence that mentions thetype of test conducted, whether the test was significant, and ifrelevant, effect size and/or post hoc analyses. Don't forget toinclude a decision about the null hypothesis.
