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paper 2
research methods
reliability
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Cards (20)
What is the main focus of psychology in relation to measurement?
Measuring
behavior
consistently
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Why is reliability important in psychological investigations?
It ensures
consistent
results across measurements
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What is external reliability in psychological measures?
Consistency of
results
when repeated by others
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What is internal reliability in psychological measures?
Consistency
among different parts of a measure
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How can internal reliability be assessed using a questionnaire?
By splitting it into two parts and
correlating
results
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What does a strong correlation indicate in the split-half method?
It indicates
internal reliability
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What is the test-retest method used for?
To assess
external reliability
of a measure
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What happens if the same participants give different results in a test-retest?
It indicates a lack of
external reliability
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What is inter-observer reliability in observational studies?
Agreement between different
observers' results
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How do researchers assess inter-observer reliability?
By comparing results from two
observers
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What statistical tests are used to measure correlations?
Pearson's r
or
Spearman's rho
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What correlation value indicates a reliable measure?
A strong correlation of
0.8
or stronger
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How can researchers improve reliability in observational studies?
By training
observers
and refining
categories
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Why should behavioral categories be operationalized?
To ensure
precise
measurement of behaviors
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How can interviews be structured to improve reliability?
By carefully
phrasing
questions to avoid confusion
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What type of questions can reduce confusion in questionnaires?
Closed questions
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What should researchers do if measuring established factors?
Use established
tests
instead of creating new ones
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What is important for experiments to ensure reliability?
Using a clear standardized
procedure
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What should researchers keep constant in experiments?
Environmental conditions
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What is the focus of the next research methods video mentioned?
Validity
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