Exam 11: Using Specialized Research Designs

You conduct a quasi-experiment to assess the impact of raising the speed limit from 55 to 65 miles per hour. You find out that there were more accidents at higher speeds. Although it is tempting to say that raising the speed limit caused higher accident rates, you must be careful because:

A quasi-independent variable is created by randomly assigning subjects to groups irrespective of the characteristics that the subjects possess.

The Solomon four-group design allows to test for pretest sensitization effects.

A particular problem with the pretest-posttest strategy is that participants may be sensitized by the pretest, causing them to perform differently.

The cohort-sequential design eliminates generation effects.

When using naturally occurring events as quasi-independent variables, one of the drawbacks is that:

Experimental designs fail to determine whether the relationships that exist between variables are causal ones.

A mixed design is a type of factorial design that combines between-subjects and within-subjects factors.

Campbell and Stanley (1963) point out that although the two-group pretest-posttest design ensures a degree of internal validity, _____.

In most cases, you have total control over potential confounding variables in a quasi experiment.

Which of the following designs permits researchers to see developmental changes clearly and as they occur, thereby making the design worth the rather large investment of time it takes to collect data?

When evaluating the impact of a new policy on the productivity of factory workers, you would most likely use a:

Which of the following is an advantage of a cross-sectional design?

You include a set of four tasks under one level of your independent variable and a different set of four tasks under the other level. Your experimental design is a _____ design.

Define a covariate, and indicate how it can be used in an experimental design. What are the advantages and disadvantages of including a covariate in the experimental design?

Subject mortality, testing effects, and the cross-generational effects are drawbacks associated with the:

Discuss the drawbacks associated with quasi-experimental strategies.

Explain how you can include a quasi-independent variable in an experiment. What are the advantages and disadvantages of including the variable in an experimental design?

According to Campbell and Stanley (1963), which of the following is a remedy for pretest sensitization?

One way to combine experimental and correlational variables is to include: