Researchers conduct a study in which three groups of research participants are exposed to three different conditions, after which their heart rate is measured. In condition one, the group is asked to place their right hand for three minutes into a pot of water that is 90 degrees. In condition two, the second group is asked to place their right hand for three minutes into a pot of water that is 125 degrees. The last group is asked to place their right hand for three minutes into ice water. The average heart rate of each group is the dependent measure.
What kind of analysis would this study require?
a. A t-test
b. A repeated-measures ANOVA
c. A 1-way ANOVA
d. multiple t-test study
The effect of water temperature on heart rate in the study from question 2 is described by F (2, 356)=33.24, p<.001.Given this information, what do you know about the outcome of this study?
a. Nothing. We need to examine the post-hoc analyses and means
b. There is at least one significant difference between the effects of the three water-temperatures used in this study on heart rate.
c. There are significant differences between 90-degree, 125-degree, and ice-cold water on heart rate.
d. There is a significant difference between ice-cold water's and 125-degree water's effect on heart rate, but no other differences.
Once the F-test has been provided by SPSS, what options should we proceed with?
a. A Tukey HSD follow-up test
b. A Bonferroni post-hoc test
c. Scheffe's test
d. Each of these might be used correctly
This solution answers multiple choice questions about psychology statistical analysis.