Table 1 Percentage of students selecting each answer choice for the three questions
Answer choice | Percentage of students |
|---|---|
Question 1. Based on the description of the study, what would you conclude about the effect of eating chocolate on test performance? | |
A. I am fairly certain there is an effect | 48 |
B. I’m not sure—I would need more information | 50 |
C. I’m fairly certain there is not an effect | 2 |
Question 2. Which of the following additional pieces of information would be useful for determining if chocolate had an effect on test performance? (select all that apply.) | |
A. The mean test scores for each group | 81 |
B. The standard deviation of test scores within each group | 74 |
C. A rating of how much each participant likes chocolate | 16 |
D. A list of the exact test items that were used | 27 |
E. More information about what kind of chocolate was used | 8 |
Question 3. If you could only choose one, which of the following additional pieces of information would be most useful for determining if chocolate had an effect on test performance? | |
A. The mean test scores for each group | 61 |
B. The standard deviation of test scores within each group | 24 |
C. A rating of how much each participant likes chocolate | 6.5 |
D. A list of the exact test items that were used | 6.5 |
E. More information about what kind of chocolate was used | 2 |