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Chapter 6

Chapter Self-Test

Chapter Self-Test

This activity contains 6 questions.

	The leading reason for using quasi-experimental designs instead of experimental designs is   the inability to randomly assign participants to treatments. the inability to match participants on more than two or three variables. their superiority in establishing cause-and-effect conclusions. the anti-experimental bias among the population.

	Which of the following is controlled to the same extent in experimental and quasi-experimental designs?   instrumentation statistical regression differential selection of subjects maturation

	The greatest challenge when using a time-series design is   finding representative situations to enhance external validity. having enough parallel forms of the measure so that the testing threat to internal validity is controlled. being able to randomly assign participants to treatment groups. obtaining enough baseline measures before the treatment occurs.

	Quasi-experimental designs are best described as   the complement of experimental designs. approximations to experimental designs. experimental designs in non-experimental settings. the opposite of experimental designs.

	The most obvious threat to internal validity in most quasi-experimental designs is   statistical regression. history. mortality. differential selection of subjects.

	Quasi-experimental designs, as opposed to experimental designs, tend to be more   intrusive. practical. externally valid. internally valid.

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