Question

Dr. T wanted to see if mindfulness training is related to stress levels. He recruited 10 participants to undergo mindfulness training and examined their reported stress levels on the DRT Stress Inventory. These were his results:

Minutes of Mindfulness Training	DRT Stress Inventory Score
61	8
122	6
201	3
33	9
55	7
329	1
10	9
1	10
93	7
144	5

'a. identify the null hypothesis

b. Based on the correlation output (two-tailed test), can the null hypothesis be rejected? If the null can be rejected, how confident can you be that the results are not due to chance?

c. Report the results in APA format as you might see them in a journal.

Answer 1

1. Null hypothesis: Mindfulness training is not significantly related to stress levels.

2. The value of R is -0.9796. This is a strong negative correlation, which means that high X variable scores go with low Y variable scores (and vice versa).

Based on these values, the null hypothesis can be rejected because the critical value of r at 0.01 level of signficanvw with 8 df is 0.765. The value we have obtained is greater than this. Hence, we can be 99% confident that the results have not occurred due to chance.

3. From the analysis, a negative correlation between mindfulness training and stress was obtained, r = -0.9796, n = 10, p < 0.01.