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SINGLE CASE, QUASI- EXPERIMENT AND DEVELOPMENT RESEARCH.

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Presentation on theme: "SINGLE CASE, QUASI- EXPERIMENT AND DEVELOPMENT RESEARCH."— Presentation transcript:

1 SINGLE CASE, QUASI- EXPERIMENT AND DEVELOPMENT RESEARCH

2 SINGLE CASE EXPERIMENTAL DESIGNS Single Case Experimental Designs Baseline Reversal Designs or withdrawal design ABA, ABAB Multiple Baseline Designs Replications in Single Case Designs

3 SINGLE CASE EXPERIMENTAL DESIGNS Multiple baseline design

4 PROGRAM EVALUATION NEEDS ASSESSMENT  PROGRAM THEORY ASSESSMENT  PROCESS EVALUATION  OUTCOME EVALUATION  EFFICIENCY ASSESSMENT

5 QUASI-EXPERIMENTAL DESIGNS One-Group Posttest-Only Design

6 QUASI-EXPERIMENTAL DESIGNS One-Group Pretest-Posttest Design

7 PROBLEMS WITH QUASI- EXPERIMENTAL DESIGNS History Maturation Testing Instrument Decay Regression Toward the Mean

8 QUASI-EXPERIMENTAL DESIGNS Nonequivalent Control Group Design

9 QUASI-EXPERIMENTAL DESIGNS Nonequivalent Control Group Pretest-Posttest Design

10 QUASI-EXPERIMENTAL DESIGNS Interrupted Time Series Design Examines the dependent variable over an extended period of time, both before and after the IV is implemented Interpretation problems (possible regression to the mean)

11 QUASI-EXPERIMENTAL DESIGNS Control Series Design Improves interrupted time series design by finding an appropriate “control group” Involves finding a similar population that did not receive a particular manipulation Limited because this is not a true “control group”

12 DEVELOPMENTAL RESEARCH DESIGNS Cross-Sectional Method – persons of different ages measured at the same point in time Longitudinal Method – same group is observed at different times (as they age)


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