Designs in Experimental Research (WO 1,2,3,4)
When designing an experimental research project it is important to draw the design to be sure it is balanced. EXAMPLE: A, B, C, D are groups of participants; 1, 2, 3, 4, are the treatments.
| A 1 | A 2 | A 3 | A 4 |
| B 2 | B 3 | B 4 | B 1 |
| C 3 | C 4 | C 1 | C 2 |
| D 4 | D 1 | D 2 | D 3 |
In this design you can look into each cell and see the individual score of the participants that make up that cell. To analyze the scores in each cell would represent a within group difference. If you compared the average scores of group A, B, C, D the score between each cell would represent the difference between groups.
For each of the following research design:
- Write a description explaining exactly what the design is and in what type of research it is most frequently used.
- Choose one of the designs listed below and make up an example of a study that illustrates the design.
- State a research hypothesis and identify the independent and dependent variable for the chosen design.
Designs:
Counterbalanced
https://www.alleydog.com/glossary/definition.php?term=Counterbalance
https://explorable.com/solomon-four-group-design
https://www.oxfordreference.com/view/10.1093/oi/authority.20110803100250176
https://home.csulb.edu/~msaintg/ppa696/696exper.htm
- The most commonly used quasi-experimental design is the experimental group-control group pattern. A variation on this design is the nonequivalent control group design. There are eight variations of the nonequivalent control group design that are considered “interpretable.”
- No-treatment control group designs
- Nonequivalent dependent variable designs
- Removed treatment group designs
- Repeated treatment designs
- Reversed treatment nonequivalent control group designs
- Cohort designs
- Posttest only designs
- Regression continuity designs
- Describe each of the above eight (8) designs and any weaknesses the designs may have.
