Repeated Measures ANOVA

Question 1

What exactly is a repeated measures one way ANOVA?(2)

Answer 1

1. for related groups
   L> one DV (continuous- either interval or ratio)
   L>one IV ( categorical- either nominal or ordinal)
2. extension of the correlated t-test
   - a test to detect differences between related means

Question 2

Most commonly there are two circumstances when you should use a repeated measures ANOVA . What are they?

Answer 2

1. To investigate changes in the mean scores for more than two conditions
2. To investigate the differences in the mean scores across two or more conditions

Question 3

The IV in a repeated measures ANOVA design has one level/multiple?.

Answer 3

multiple

Question 4

Do participants only participate in one condition?

Answer 4

• no

- each participant participates in each condition/level of the experiment (similar to the correlated t-test)

Question 5

For designs which use time as the IV, what is going on with respect to the DV?

Answer 5

• different times of measurement of the DV count as separate levels for the IV

Question 6

For designs which use measurement of the DV across different conditions rather than time what are the levels of the IV?

Answer 6

• conditions