Flashcards
Extraneous/Confounding Variables
Cards in this deck (10)
- 1EXTRANEOUS VARIABLESVariables other than the IV that might affect the DV
- 2CONFOUNDING VARIABLESUncontrolled extraneous variables which negatively affect the results
- 3SOCIAL DESIRABILITYA distortion in the way people answer question- they tend to answer questions in such a way that presents them in a better light.
- 4DEMAND CHARACTERISTICSParticipants want to be helpful and therefore pay attention to cues that guide their behaviour.They describe the effect of expectations.Might know the aim/hypothesis and could change their behaviour. Not always valid/accurate.
- 5EXPERIMENTER EFFECTS/INVESTIGATOR EFFECTSAre any cues (other than the IV) from an investigation that encourage certain behaviours in the participant, which could lead to a fulfilment of the investigator's expectations.
- 6SITUATIONAL VARIABLESFeatures of a research situation that may influence participant's behaviour and thus act as EVS or CVS.For example, order effects. Situational variables are only confounding if they vary systematically with the IV.
- 7PARTICIPANT VARIABLESA PV is any characteristic of individual participants. PVS not the same as participant effects.PVS affect as EVS only if an independent group design is used. When a repeated measures design is used, participants variables are controlled. These include: age, intelligence, motivation, gender, experience etc.Repeated measures and pairs counter participant variables.
- 8SINGLE BLIND DESIGNThe participant is not aware of the research aims and/ or of which condition of the experiment they're receiving.Precents ppt's from seeking cues and reacting.
- 9DOUBLE BLIND DESIGNBoth the participants and researcher are 'blind'. Less likely to produce cues about what they expect.
- 10EXPERIMENTAL REALISMExperimental tasks engaging the participants to the task and not the fact they're being observed.
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- Flashcards on Extraneous/Confounding Variables, created by alexstoddard2626 on 24/12/2015.
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- alexstoddard2626
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