19a. In a 1-Factor analysis of variance (ANOVA) for repeated measures, one sample is randomly drawn from a population of hyperactive children. Children are treated at three points in time with different drug dosage levels. During treatment, hyperactive behavior is observed. The average frequency of hyperactive behavior is calculated at each time and treatment means are compared. In this case, the independent variable (IV) is....

a. hyperactive behavior

b. drug dosage

19b. the average sum of squares within treatments (MSwt) is partitioned into two parts. One part represents the between-subject-within-treatment variance (MSbswt) to estimate individual differences on the dependent variable (DV). The other part represents...

a. leftover within-treatment variance

b. experimental error

c. residual within-treatment variance

d. all of the above, because each answer describes the same part

19c. Fobs is constructed as a ratio of variances (Mean Squares; MS). The average sum of squares between treatment means (MSbt) is in the numerator of the ratio.

What is the average sum of squares in the denominator of the ratio?

a. MStotal

b. MSwithin-treatment (wt)

c. MSbetween-subjects-within-treatments (bswt)

d. MSexperimental error (error)

19d. As a source of variation on the dependent variable (DV), experimental error is defined as variation on the DV unrelated to variation due to treatment (variation of the independent variable; IV)....

a. true

b. false