Question

PLEASE Include any Necessary Explanations/ Notes

Please note that for all problems in this course, the standard cut-off (alpha) for a test of significance will be .05, and you always report the exact power unless SPSS output states p=.000 (you’d report p<.001). Also, remember that we divide the p-value in half when reporting one-tailed tests with 1 – 2 groups.

Finally, remember when hand-calculating, always use TWO decimal places so that deductions in grading won’t be due to rounding differences.

Part 1 – CONCEPTS from this week’s assigned readings and presentations (2 pts per question / 20 total)

If homogeneity of variance is violated for a correlated-groups t-test, what nonparametric test should be considered?
Which nonparametric test is most appropriate when the goal is to identify differences in frequency on two variables between groups when the variables are independent but nominal?
Because nonparametric tests are less powerful, how does this impact decisions about the null hypothesis?

Answer 1