Exam 13: Quasi Experiments

An automobile plant plans to implement a new assembly procedure throughout the plant in order to increase productivity. To find out whether the new procedure is better than the old, management plans to compare weekly productivity over the last six months before the change with the first six months after the change. What type of quasi-experimental design is illustrated in this example?

The effect resulting from following cohorts over time in a cross-sequential design is called

A true experiment is preferable to a quasi experiment _____________

Which one of the following statements is true concerning the nonequivalent control group design?

A __________ study tests the same group of individuals over a long period of time.

An interrupted time series design lacks

A __________ study is able to test time lag effects.

The distinctions between true and quasi experiments, in general, depend upon the degree to which

It is possible to find a large effect that is not statistically significant because

Keogh and Witt 2001) had men and women drink a cup of caffeinated or decaffeinated coffee and then measured their pain tolerance. This study could be called a __ design

A quasi experiment has lower __________ validity but may have higher ________ validity

In a repeated treatment design, subjects' responses are measured

A distinguishing characteristic of the nonequivalent control-group design is that the

Which of the following pattern of results of a nonequivalent control group design is generally interpretable?

Interrupted time series designs are useful when

If X = experimental treatment and O = pretest or posttest observation, then for "O X O", O represents the _____ design.

Combining the results of many studies as if they were one large study is called

Which of the following is a subject variable?

The ABAB single-subject design is similar to the ____________ quasi experimental design.

People sometimes resist a program evaluation because