Suppose I am interested in knowing whether adults who are very introverted at age 20 are still highly introverted at age 50. Which of the following statistical analyses will I be most likely to use?

Question

Quizplus · Accepted Answer

In order to examine whether introversion is consistent over time, we need to use a longitudinal design where the same individuals are tracked over time. Additionally, we want to examine the relationship between introversion at age 20 and age 50, which is best captured by a correlation analysis. Therefore, choice D is the best option as it involves calculating the correlation between introversion scores at the two time points in a group of subjects studied longitudinally. Choices A and B are not optimal because they do not assess consistency over time for the same individuals, while choice C does not capture the relationship between the two time points.

Suppose I Am Interested in Knowing Whether Adults Who Are