Planning experiments

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Psychology unit 4 research methods
Planning experiments
State your Operationalised IV and DV
Write a hypothesis
State the sampling method used
State the design you are using
Describe and control extraneous variables:
- Light levels
- Alone or in groups
- Time (of day and duration)
- Individual differences
- Noise levels
- Demand characteristics
- Investigator effects
- Temperature
- Order effects (practice/fatigue)- counterbalancing
Write a procedure (standardised instructions) in as much detail as possible-
describe how to control extraneous variables
Mention any ethical issues

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