Psychology Research Methods
- Created by: Rita
- Created on: 18-10-20 20:05
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- Psychology Research Methods
- Experiments
- Laboratory
- Highly controlled conditions
- Participants are Randomly allocated to Independent variable groups
- Cause and Effect - Able to establish if a variable cased change int he other variables
- Ethics - Deception makes consent difficult (Because participants are aware they are being watched they may change behaviour if not deceived)
- Field
- Outside Laboratory
- Behaviour is measured in natural environment
- Ethics - Deception making it harder to get consent may cause them distress
- Ecological Validity - Can generalise to real life behaviour
- Natural
- How independent variable that's not manipulated by the researcher effects the dependent variable
- e.g. No tv in St Helen then its introduced observing the change in behaviour of the local children
- Ethics - The researcher is not manipulating the situation
- Cause and Effect - Hard to establish which variable effected the others (or other factors)
- Quasi
- Can't Randomly allocate participants
- Independent variable is a participants feature
- e.g. gender (naturally occurring)
- Ecological Validity - Less artificial so more likely to generalise to real life
- Cause and effect - Hard to establish which variable effected the others
- Laboratory
- Experiment Design
- Independent Group Design
- Each group dose a different task
- To avoid improvement from everyone doing all the tasks (Confounding variable)
- No Order Effect - No one gets better or worse from practice or bordem
- Participant Variable - The difference between the participants in each group affecting the results (e.g. higher IQ)
- Repeated Measure Design
- All participants do all the tasks
- Participant Variable - Everyone doing the same tasks so there individual differences should not effect results
- Order effect -If all participants do the tasks in the same order they could all improve on the second task
- Matched Pair design
- Participants are matched on important variables (e.g. gender / age / IQ)
- The pairs are then Randomly allocated to a task
- No order effect - Different people in each condition
- Number of participants - twice as many people as repeated measures
- Independent Group Design
- Experiments
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