Question

Which of the following words/symbols would indicate that you are reading results from a multiple-regression analysis?

• A. b
• B. Sig
• C. r
• D. d

Researchers may be interested in how a variable changes over the course of a major event that is scheduled outside of experimental control. This is called:

• A. nonequivalent control group design.
• B. wait-list design.
• C. reversal design.
• D. interrupted time-series design.

In a multiple regression design, __________ variable is to dependent variable as ___________ variable is to independent variable.

• A. criterion; predictor
• B. manipulated; measured
• C. control; mediator
• D. bivariate; multivariate

Which of the following cannot be found in a one-group, pretest/posttest design?

• A. A random sample
• B. A valid measure
• C. A comparison group
• D. A manipulation

Please provide a brief explanation to the correct choice

Answer 1

Ans:

1)Correct option is d.

The d indicates statistic for Durbin-Watson test for auto-correlation.

2)Correct option is  wait-list design.

A wait list control group, also called a wait list comparison, is a group of participants included in an outcome study that is assigned to a waiting list and receives intervention after the active treatment group.

3)Correct option is criterion; predictor.

The predictor variable is analogous to an independent variable and is used to predict an outcome (the criterion variable).

4)Correct option is A comparison group.

As in pre-test/post test,as single group is measured or manipulated at different times.