After reading this chapter, you should be able to

10.1 Apply and explain one-group quasi-experimental research designs: the posttestonly and pretest-posttest designs.

10.2 Apply and explain nonequivalent control group quasi-experimental research designs: the posttest-only and pretest-posttest designs.

10.3 Apply and explain time series quasi-experimental research designs: basic, interrupted, and control designs.

10.4 Apply and explain developmental quasi-experimental research designs: longitudinal, cross-sectional, and cohort-sequential designs.

10.5 Define the single-case experimental design.

10.6 Apply and explain three types of single-case research designs: the reversal, multiple-baseline, and changing-criterion designs.

10.7 Identify in a graph the stability and magnitude of a dependent measure, and explain how each is related to the internal and external validity of a single-case design.