Problem: Let's say you've just read about mindfulness meditation and its effect on perceived stress in first-year nursing students. In this hypothetical study, fifty students were randomly assigned to either a mindfulness meditation group or a wellness education group for 10 weeks. After 10 weeks, students in the mindfulness meditation group earn a meaned perceived stress score of 16, while students in the wellness course earned a mean score of 24. The higher the score, the higher the stress level experienced by the students.
You wonder if the difference in the groups perceived stress scores occurred by chance or if the difference was due to the mindfulness meditation intervention. You also wonder whether this would matter to nursing students. What information from the study would help you determine how important the results are? (check all that apply)
A. the number of students positively affected by the intervention
B. The p-value
C. The difference between the two groups perceived stress level
D. whether anyone was harmed by the intervention