Lecture 7B: One-way Reported Measures ANOVA

Question 1

When is it appropriate to use one-way repeated measures ANOVA?

Answer 1

When comparing ≥3 means which are related or within the same subjects.

E.g. Knee Isometric strength (knee angle at 5 deg, 45 deg, and 90 deg of flexion.)

Question 2

Differentiate between one-way ANOVA and one-way repeated measures ANOVA

Answer 2

Related means:

• e.g. same participants measured multiple times → dependent data

Question 3

What does a significant result (p < 0.001) in one-way repeated measures ANOVA indicate?

Answer 3

Reject the null hypothesis.

Question 4

What statistical test is used for post-hoc analysis after one-way repeated measures ANOVA?

Answer 4

Multiple paired t-tests with Bonferroni correction.

Question 5

What is the adjusted alpha for each paired t-test after Bonferroni correction, when there are three comparisons?

Answer 5

0.05/3 = 0.017.

Question 6

True or False: One-way repeated measures ANOVA can be used for independent means.

Answer 6

False.

Question 7

Fill in the blank: The statistical test used to measure the association is _______.

Answer 7

Pearson’s r.

Question 8

What is the formula for adjusting alpha in post-hoc tests?

Answer 8

Desired α / number of comparisons.