Instructions

Randomized (True) Experimental Design

1

Decide on a hypothesis--what you are trying to prove or disprove.
2

Randomly assign your sample group to either the control group or the experimental group.
3

Apply the desired variable to the experimental group.
4

Track the results of the experiment with a spreadsheet or statistical analysis software.
5

Analyze the results of your experiment and form conclusions.

Quasi-Experimental Design

1

Decide on a hypothesis--what you are trying to prove or disprove.
2

Select two groups--the control group and the experimental group. For example, divide a classroom into halves, the left half and the right half. No random assignment is used.
3

Apply the desired variable to the experimental group.
4

Track the results of the experiment with a spreadsheet or statistical analysis software.
5

Analyze the results of your experiment and form conclusions.