Question: The following data are from a research study comparing two treatment conditions. Do the data indicate a significant difference between treatments? Use a two tailed test with α=.05.

a. For the first test, assume the data are from an independent measures study using two separate samples.

b. For the second test assume the data are from a repeated measures study using the same sample of n=5 participants in both treatments.

c. Explain why the 2 point mean is significant for one test but not the other.

Treatment 1 treatment 2