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Experimental Design

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You have been asked to develop a study of the effects of watching Sesame Street on childrens' gender role orientations, intelligence, or sociability (select one).

(1) Describe how you would design the study using a preexperimental design (one shot case study, one group pretest-post test design, or static group comparison -- select one).

(2) Describe how you would design the study using a true experimental design (pretest-post test control group design, Solomon four-group design, or post test-only control group design -- select one).

For both of the designs you have to explain why you would select that design AND note how you would measure the dependent variable. Note the major advantage & weakness of each design in this particular study. Include 1 source of internal invalidity for each design & explain why you selected that one.

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You have been asked to develop a study of the effects of watching Sesame Street on children's gender role orientations, intelligence, or sociability (select one). Describe how you would design the study using a preexperimental design (one shot case study, one group pretest-post test design, or static group comparison - select one). Describe how you would design the study using a true experimental design (pretest-post test control group design, Solomon four-group design, or post test-only control group design - select one). For both of the designs you have to explain why you would select that design AND note how you would measure the dependent variable. NOTE the major advantage & weakness of each design in this particular study. INCLUDE 1 source of internal invalidity for each design & explain why you selected that one.

I chose the effects of watching Sesame Street on children's intelligence.

The pre-experimental design I chose was static group comparison.

I selected this design because it is simple and straightforward. The ...

Solution Summary

The solution describes

(1) a static group comparison and
(2) a pre-test post-test control group study.

The following is included for both of the two kinds of studies: a description of how the design would work, advantages and disadvantages of the design, how the dependent variable would be measured, and a source of invalidity. Both studies mentioned involve exploring the effects of watching Sesame Street on children's intelligence.

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Program Design and Evaluation - Quasi-Experimental Designs

Evaluator's Toolbox: Quasi-Experimental Designs.

Quasi-experimental designs are excellent research designs to use in evaluative research such as program evaluation. The director of training at GlobalEd would like to complete a study using a quasi-experimental design and needs your help. His hypothesis is as follows: Multicultural training will increase instructor's understanding of how culture can contribute to an appearance of a behavior problem. Your Acme Corporation Behavioral Health supervisor thought that a pretest/post test quasi-experimental design would be ideal to test his hypothesis. In this discussion, we will talk about the process the training director should use to complete his study.

What are some of the steps for completing this quasi-experimental study?

When responding to other Acme Corporation Behavioral Health interns comment on the order of the steps as well as if you agree or disagree. By the end of the discussion, there should be a clear picture of what the director should do, step by step.

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