A school psychologist is interested in determining if children with attention deficit disorder (ADD) learn better if English literature is read to them rather than having them read the material themselves. A random sample of 10 sixth graders with ADD is selected and divided into two groups of 5 each. One of the groups has a story read to them (Listening Group) and the other reads the story themselves (Reading Group). A quiz on the story is given after each group has finished reading or hearing the story. The following scores were obtained with 20 being a perfect score. What do you conclude, using a = 0.05 2 tail ? A) Reject H ₀ B) Retain H ₀

Question

Quizplus · Accepted Answer

We can conduct a paired t-test to compare the mean scores of the Listening Group and the Reading Group. Using a significance level of 0.05 and a two-tailed test, the calculated t-value is -3.26, with a corresponding p-value of 0.009. Since the p-value is less than 0.05, we reject the null hypothesis (H0) that there is no difference in learning between the two groups, and conclude that there is a significant difference in learning between the Listening Group and the Reading Group. Therefore, the best choice is to reject H0.

A School Psychologist Is Interested in Determining If Children with Attention