1. Linear regression is used to Select one: a. predict unknown y scores from kno

Question

1.

Linear regression is used to

Select one:

a. predict unknown y scores from known x scores.

c. make sure the x and y scores match.

d. predict known y scores from known x scores.

2.

Unlike the two groups designs, significant results for the multiple groups designs require

Select one:

a. a continuous IV.

c. many more participants.

d. computation of post hoc comparisons.

3.

The 2 test most often is used with __________ scaled variables as long as the categories are mutually exclusive.

Select one:

b. interval

c. nominal

d. ratio

4.

A study evaluated the effectiveness of three types of therapy in producing self-reliance. The researcher also assessed sex because she thought the therapy might affect males and females differently. An independent groups design was used with 5 participants per cell. What is the design of the study?

b. 3 x 2 x 5 factorial

c. 3 x 2 factorial

d. 2 x 5 factorial

5.

In two-way ANOVA, a significant interaction occurs when

Select one:

a. the combined effects of the two variables yield an unexpected effect.

b. one variable has a main effect and the other does not.

c. there are no main effects.

Explanation / Answer

1.

Linear regression is used to

a. predict unknown y scores from known x scores.

2:

Unlike the two groups designs, significant results for the multiple groups designs require

d. computation of post hoc comparisons.

3:

The 2 test most often is used with __________ scaled variables as long as the categories are mutually exclusive.

Select one:

c. nominal

5:

In two-way ANOVA, a significant interaction occurs when

a. the combined effects of the two variables yield an unexpected effect.

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