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Questions and Answers
RELIABILITY COEFFICIENT IS AN INDEX OF ______, A PROPORTION THAT INDICATES THE RATIO BETWEEN THE TRUE SCORE VARIANCE ON A TEST AND THE TOTAL VARIANCE.
RELIABILITY
A MEASURE SHOULD PRODUCE SIMILAR OR THE SAME ______ CONSISTENTLY IF IT MEASURES THE SAME 'THING.'
RESULTS
The score that the testtaker got X- observed score T- true score reflects what the examinees really knows E- error Part of the observed score due to factors other than what the examinee actually knows or can do RELIABILITY – REFERS TO THE PROPORTION OF THE TOTAL VARIANCE ATTRIBUTED TO ______ VARIANCE
TRUE
THE GREATER THE PROPORTION OF THE TOTAL ______ ATTRIBUTED TO THE TRUE...
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Classical Test Theory -the score on an ability test is presumed to reflect not only the testtakker’s true score on the ability being measured but also ______ X=T+E
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Reliability is the consistency in measurement across application and time. A measure should produce similar or the same results consistently if it measures the same
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The reliability coefficient is an index of reliability, a proportion that indicates the ratio between the true score variance on a test and the total
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The score that the testtaker got X- observed score T- true score reflects what the examinees really knows E- error Part of the observed score due to factors other than what the examinee actually knows or can do. Reliability refers to the proportion of the total variance attributed to true
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The greater the proportion of the total variance attributed to the true
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The greater the proportion of the total variance attributed to the true, the higher the
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Study Notes
Concept of Reliability
- A measure should produce similar or the same results consistently if it measures the same "thing".
- Reliability coefficient is an index of reliability, a proportion that indicates the ratio between the true score variance on a test and the total variance.
Classical Test Theory
- The score on an ability test is presumed to reflect not only the test-taker's true score on the ability being measured but also error.
- X = T + E, where:
- X is the observed score
- T is the true score, reflecting what the examinee really knows
- E is the error, part of the observed score due to factors other than what the examinee actually knows or can do
Reliability
- Refers to the proportion of the total variance attributed to true variance.
- The greater the proportion of the total variance attributed to the true score, the higher the reliability.
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Description
Test your understanding of the concept of reliability in psychological measurements with this quiz. Explore the importance of consistency in measurement across different applications and time, and learn about reliability coefficients as an index of reliability.
