Question 1. The one-way ANOVA can accommodate any number of independent variables.

True

False

Question 2. The sum of squares, the standard deviation, the variance, and the range are all measures of data variability.

True

False

Question 3. What is the relationship between t and F if both are performed for a two-group test?

ANOVA will have the lower rate of type I error.

t = F

t will have less error variance.

t2 = F

Question 4. Which of the following is a primary source of error variance?

Differences in the level of the treatment applied

Differences within the groups involved

The independence of the groups involved in the analysis

Differences in sample size

Question 5. When the dependent groups tests use matched pairs, what is it that is matched?

Subjects are matched on the degree of error variance each one manifests.

Subjects are matched so that each pair receives the same treatment.

Subjects are matched on variables other than the IV that affect the DV.

Subjects are matched so that there are no differences in the level of the DV.

Question 6. What is the highest value eta-square can have?

There is no upper limit.

1.0

.5

.25

Question 7. The within-subjects F is the dependent groups equivalent to what independent groups test?

The independent t-test

The one-way ANOVA

The one sample t-test

The z-test

Question 8. The independent variable in either a before/after t or a within subjects F is always of what data scale?

Nominal

Ordinal

Interval

Ratio

Question 9. How is the error term in the within-subjects F determined?

All variance minus the variance related to measure-to-measure differences

The measure-to-measure differences minus the residual variability

The residual variability minus the treatment effect

All variance minus the treatment effect minus the subject-to-subject differences

Question 10. The eta-squared statistic _____________.

provides a measure of practical importance

indicates the ratio of treatment effect to error variability

indicates which set of scores are significantly different from which

provides a test of the probability of committing a decision error.