In: Statistics and Probability
Dr. Smith is examining the development of moral reasoning in children. Seven children (11-years old) are assessed three times over the year. The children are given moral reasoning scenarios. Higher scores indicate higher levels of moral reasoning.
Time 1 |
Time 2 |
Time 3 |
5 |
6 |
10 |
4 |
7 |
9 |
8 |
8 |
9 |
7 |
9 |
7 |
6 |
5 |
10 |
3 |
5 |
7 |
2 |
2 |
4 |
a. State the null hypothesis.
b. Identify the appropriate statistical test
c. Calculate the appropriate test statistic. Make sure to report the degrees of freedom for
the statistical test (if appropriate). You must show your work to receive full credit.
d. State your conclusions (use a two-tailed test with a = .05 for all tests).
e. Compute an effect size.