With the above study,the outcome variables are interval-scaled.Which descriptive statistics would need to be provided?
A)Means and medians for all
B)Means and standard deviations for pre- and post-test for both age categories; and both treatment groups
C)Standard deviations for both age groups,and means for both treatment groups
D)None of the above

Question

Quizplus · Accepted Answer

For interval-scaled outcome variables, providing means and standard deviations is appropriate because these statistics summarize the central tendency and dispersion of the data, respectively. This is particularly relevant for pre- and post-test comparisons across different groups, such as age categories and treatment groups.

With the Above Study,the Outcome Variables Are Interval-Scaled