Control of variables
Teacher recommended
?- Created by: Karen Askew
- Created on: 19-10-16 21:40
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- Control of variables
- Extraneous Variables
- Variable that could have an effect of the DV
- Participant Variables
- Individual differences
- Eg. IQ
- Situation Variables
- Features of the experiment
- Eg. Temp
- Confounding Variables
- Found after the study
- Variables that have affected the DV
- How to control / minimise EVs and CVs
- Randomisation
- Eg. randomly generate words for memory test
- Standardisation
- Using the exact same formalised procedures and instructions for all participants
- Control group
- Used to compare
- Randomisation
- Investigator effects
- Personal characteristics
- Accent, Attractiveness
- Expectation
- May interpret findings to support expectations
- Personal characteristics
- Participant effects
- Demand characteristics
- Participants work out the aim and act how they think the researcher want them to
- Screw-U-effect
- Participants work out the aim and act how they think the researcher doesn't want them to
- Social Desirability Bias
- When Participants act differently to look good
- Demand characteristics
- How to control / minimise IEs and PEs
- IEs
- Double blind
- Film the study
- Use 2 researchers
- PEs
- Single blind
- IEs
- Extraneous Variables
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