Questions and Answers
What is the reliability coefficient range for good reliability?
0.75 to 1.0
Which type of reliability involves the stability of response over a specific time interval?
Test-Retest reliability
Which type of reliability involves obtaining the same ratings for a given variable by one rater on multiple occasions?
Intra-rater Reliability
What does the reliability of two equivalent forms of a measuring instrument refer to?
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What is face validity?
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What is content validity?
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What is criterion-related validity?
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What is construct validity?
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What is the relationship between validity and reliability?
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Which type of validity indicates that an instrument measures what it is intended to measure?
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What type of validity reflects the degree to which a theoretical construct is measured by an instrument?
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Which type of validity indicates that an instrument appears to test what it is supposed to test?
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What is the reliability coefficient range for moderate reliability?
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Which type of reliability involves obtaining the same ratings for a given variable by one rater on multiple occasions?
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What does test-retest reliability measure?
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What is the degree of consistency with which an instrument or rater measures a variable called?
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What is the reliability coefficient range for good reliability?
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Which type of reliability involves the degree to which two or more raters can obtain the same ratings for a given variable?
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What is the reliability of two equivalent forms of a measuring instrument called?
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What type of reliability involves the degree to which an instrument is stable based on repeated administration of the test to the same individuals over a specific time interval?
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What type of validity indicates that an instrument appears to test what it is supposed to test?
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Which type of validity reflects the degree to which the items in an instrument adequately reflect the content domain being measured?
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What type of validity involves the degree to which the outcomes of one test correlate with outcomes on a criterion test?
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Which type of validity pertains to the degree to which a theoretical construct is measured by an instrument?
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What is the relationship between validity and reliability?
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What type of reliability involves obtaining the same ratings for a given variable by one rater on multiple occasions?
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Which type of reliability involves the consistency of results across items within a test?
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What does content validity focus on?
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What type of validity predicts some future performance based on current outcomes?
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Study Notes
Reliability
- Reliability coefficient range for good reliability: 0.7 and above
- Reliability coefficient range for moderate reliability: 0.5-0.69
- Test-retest reliability: measures the stability of response over a specific time interval
- Inter-rater reliability: involves obtaining the same ratings for a given variable by two or more raters
- Intra-rater reliability: involves obtaining the same ratings for a given variable by one rater on multiple occasions
- Parallel forms reliability: refers to the reliability of two equivalent forms of a measuring instrument
- Internal consistency reliability: involves the consistency of results across items within a test
Validity
- Face validity: indicates that an instrument appears to test what it is supposed to test
- Content validity: reflects the degree to which the items in an instrument adequately reflect the content domain being measured
- Criterion-related validity: involves the degree to which the outcomes of one test correlate with outcomes on a criterion test
- Construct validity: pertains to the degree to which a theoretical construct is measured by an instrument
- Predictive validity: predicts some future performance based on current outcomes
Relationship between Validity and Reliability
- Validity is a prerequisite for reliability, meaning that an instrument must be valid before it can be reliable
- Reliability is a necessary but not sufficient condition for validity, meaning that an instrument can be reliable but not valid
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