Answer:
Therefore, the results may not fully reflect the changes in beliefs among all students in the course.
Explanation:
The numbers in parentheses in the table show the number of students who confidently believed the statement is false, even though it's true.
Based on the results in the table, the best conclusion is that students have difficulty giving up false beliefs and misconceptions. This conclusion is supported by the fact that a significant percentage of students initially believed false statements and even at the end of the course, a considerable number still held onto those misconceptions.
The information about only 21 out of 33 introductory psychology students completing the questionnaire at the start and end of the semester is important when interpreting the results because it suggests that the results may not represent the entire population of students. Some of the "missing" students may have taken a psychology course in high school or may have corrected their misconceptions during the class. Therefore, the results may not fully reflect the changes in beliefs among all students in the course.