Experimental lab research - Experimental designs
9 important questions on Experimental lab research - Experimental designs
What is the goal, notation and the remark of a one-shot case study?
- Cause-effect
- X O
- No comparison possible
What is the goal, notation and the remark of a one-Group Pretest-Posttest?
- Investigate influence of a variable
- O X O
- No control for extraneous variables
What is the goal, notation and the remark of a Static group?
- Comparing a treatment with a control group
- EG: X O1
- EG and CG can differ
- Higher grades + faster learning
- Never study anything twice
- 100% sure, 100% understanding
What is the goal, notation and the remark of a Pretest Posttest control group?
- Control for confounds
- EG: R O1 X O2
- The old workhorse of traditional experimentation
What is the goal, notation and the remark of a Posttest-only control group?
- When pre-tests are not possible
- EG: R X O1
- Simplet than PPCG mortality effects possible
What is the goal, notation and the remark of a Solomon Four-group?
- Minimize effects of pre-testing
- EG1: R O1 X O2
- CG1: R O3 O4
- EG2: R X O5
- CG2: R O6
- Strongest form of experimental control, takes into account re-test
What are the sub designs of statistical design?
- Randomized blocks
- Latin square
- Factorial
What is the goal, notation and the remark of a time series?
- When one group is available, and little control over manipulation and participants
- O1 O2 O3 X O4 O5
- Sensitive for history effects and re-test effects
What is the goal, notation and the remark of a multiple time series?
- Time series with control group
- EG: O1 O2 O3 X O4 O5
- CG: O6 O7 O8 O9 O10
- Different test possible
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