Syllabus chapter 2 quiz 2

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18 Terms

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Reliability

Refers to the consistency of a task

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Valid

The extent to which the task measures what it claims to measure

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Split half reliability

measures the reliability of items within a test by looking whether half the test produces similar results to the other half

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Inter-rater reliability

whether one researcher is consistent over time / how similar two researchers record the same results

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Test-retest

measures the reliability of a test over time by checking that two tests have same or similar results

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Population validity

the extent to which how well the sample used in the study can be generalised to the target population and then the whole population

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Ecological validity

the extent to which the findings of a study can be generalised to other situations

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Temporal validity

the extent to which the findings of a study can be generalised to different time periods

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Replicability

Other psychologists can repeat the study to see if the results are consistent

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Experiment

Measured DV, manipulated IV, tests for causual relationships between the DV and IV and it is standardised

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Laboratory experiment

Measures dv. Manipulated IV. Done in a lab for more control.
PROS: can clearly see the cause and effect relationship, standardised, more ethical
CONS: low in ecological validity and demand characteristics

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Field experiment

Measures dv. Manipulated IV. Done in a natural environment so there is less control.
PROS: good ecological validity, less demand characteristics
CONS: uncontrolled variables, not standardised, not as ethical

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Independent variable

What is being manipulated in the test

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Dependent variable

What is being kept the same throughout the test

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Participant variables

Aspects of a persons background, personality, cognitive abilities, health, wellbeing et cetera that affect how they behave or respond in a study. Random allocation of participants to experiments can help overcome the effects of participant variables on results.

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Situational variables

Any aspect of the environment that could impact participants behaviour and affect the results.

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Experimental condition

The condition in which the independent variable is present

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Controlled condition

The condition in which the independent variable is absent