Experimental Design
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9 Terms
What are independent groups?
2 groups of participants doing one condition of an experiment
What are some strengths of independent groups?
- no order effects
- not affected by demand characteristics
What are some weaknesses of independent groups?
participant variables
What are repeated measures?
One group does one condition, the other group does another condition, then they swap
What are some strengths of repeated measures?
less participant variables
What are some weaknesses of repeated measures?
- order effect
- demand characteristics aren't
What are matched pairs?
Two groups of people, matched with similar characteristics most relevant to the study go through one condition in an experiment
What are some strengths of using matched pairs?
- no order effects
- less participant variables
What are some weaknesses of matched pairs?
- difference between participant could be an extraneous variable
- time consuming an expensive to organise
