Tag: posttest design
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Describe the one-group pretest-posttest design and the associated threats to internal validity that may occur: history, maturation, testing, instrument decay, and regression toward the mean.
Describe single-case experimental designs and discuss reasons to use this design. Describe the one-group posttest-only design. Describe the one-group pretest-posttest design and the associated threats to internal validity that may occur: history, maturation, testing, instrument decay, and regression toward the mean. Describe the nonequivalent control group design and nonequivalent control group pretest- posttest design, and…