If an experiment using a onefactor withinsubjects design has

If an experiment using a one-factor within-subjects design has 5 treatment conditions and uses a total of 6 subjects, then df for (A x S) equals _______.

a. 4

b. 5

c. 29

d. 20

e. 30

Suppose 15 participants were tested on four treatment conditions in a one-factor within-subjects design. The denominator of the F statistic for ANOVA would have _____ degrees of freedom.

a. 14

b. 42

c. 40

d. 60

e. 3

If an experimenter used a one-factor within-subjects design with 3 levels of an independent variable, then each participant would be measured ________time(s).

a. 1

b. 2

c. 3

d. 4

e. cannot be determined without knowing number of subjects

Which of the following does not contribute to the total variation in the scores of a one-factor within subjects ANOVA?

a. the variation due to the individual differences among subjects

b. the variation due to the dependent variable

c. the variation due to the independent variable

d. the variation due to the interaction of the independent variable and subjects

e. both b. and d.

Solution