Fifteen undergraduate students experiencing high anxiety levels were treated using a Mindfulness-Based Stress Reduction (MBSR) program. Over the course of the four-week intervention, each participant's anxiety level was monitored every week using a self-report anxiety scale (where a score of 30 = extremely high anxiety and a score of 0 = no anxiety). Each week they also completed an academic productivity questionnaire which was scored from 10 = highly productive to 0 = completely unproductive.
At the end of the study, the researchers correlated each participant's final academic productivity score with their final anxiety score. The results are shown in Figure 1 below.
Figure 1: Scattergram to show the relationship between final academic productivity scores and final anxiety scores for 15 participants at the end of the intervention

| Final Academic Productivity Score | Final Anxiety Score |
|---|---|
| 1 | 28 |
| 2 | 25 |
| 2 | 22 |
| 3 | 24 |
| 4 | 20 |
| 4 | 18 |
| 5 | 19 |
| 5 | 15 |
| 6 | 16 |
| 6 | 12 |
| 7 | 10 |
| 8 | 8 |
| 8 | 6 |
| 9 | 5 |
| 10 | 3 |
Outline one way in which the researchers should have dealt with ethical issues in this study.
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