An educational psychologist would like to determine whether access to computers has an effect on grades for high school students. One group of n=16 students has home room each day in a computer classroom in which each student has a computer. A comparison group of n=16 students has home room in a traditional classroom. At the end of the school year, the average grade is recorded fro each student. The data are as follows:

Computer	Traditional
M = 86	M = 82.5
SS = 1005	SS = 1155

1. Is there a significant difference between the two groups? Use a two-tailed test with = .05.
2. Compute Cohen's d to measure the size of the difference.
3. Write a sentence that demonstrates how the outcome of the hypothesis test and the measure of effect size would appear in a research report.