Dr.Miguel is studying stages of verbal ability in kids.He test the kids on verbal ability at age 5 years then again at age of 7.What type of statistical test should he use to analyze his data?
A)one-sample z test
B)independent-groups t test
C)correlated-groups t test
D)Pearson correlation

Question

Quizplus · Accepted Answer

The study involves testing the same group of children at two different time points, hence the appropriate statistical test would be the correlated-groups t test. This test is used to analyze the differences between two related groups.

DrMiguel Is Studying Stages of Verbal Ability in Kids