A health psychologist tests a new intervention to determine ifit can change healthy behaviors among siblings. To conduct the thistest using a matched-pairs design, the researcher gives one siblingan intervention, and the other sibling is given a control taskwithout the intervention. The number of healthy behaviors observedin the siblings during a 5-minute observation were thenrecorded.
| Intervention |
|---|
| Yes | No |
|---|
| 5 | 4 |
| 3 | 5 |
| 6 | 4 |
| 6 | 5 |
| 6 | 4 |
| 4 | 4 |
(a) Test whether or not the number of healthy behaviors differat a 0.05 level of significance. State the value of the teststatistic. (Round your answer to three decimal places.)
(b) Compute effect size using eta-squared. (Round your answer totwo decimal places.)
