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20 Cards in this Set
- Front
- Back
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Reliability
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the consistency of stability of a measure of behavior.
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True Score
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the real score on the variable.
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Measurement Error
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Unreliable measurment.
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Pearson product-moment correlation coeffient.
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common correlation coefficient when discussing reliablity.
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Test-retest reliability
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measuring the same individuals at two points in time.
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Internal Consistency Reliablity
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the assessment of reliablity using responses at only one point in time.
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Split-half reliablity
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the correlation of an individual's total score on one half of the test with the total score on the other half.
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Cronbach's alpha
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internal consistency indicator of reliability, which is based on the individual items.
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Interrater reliability
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the extent to which raters agree in their observations.
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Construct validity
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the adequacy of the operational definition of variables.
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Face validity
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tbe evidence for validity is that the measure appears "on the face of it" to measure what it is suppose to measure.
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Criterion-oriented validity
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the relationship between scores on the measure and some criterion.
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Predictive validity
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measure that predicts some future behavior.
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Concurrent validity
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the relationship between the measure and a criterion behavior at the same time. (Concurrently)
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Convergent validity
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extent to which scores on the measure in question are related to scores on the other measures of the same construct or similar constructs.
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discriminat validity
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when the measure is not related to variables with which it should not be related.
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reactivity
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potential problem when measuring behavior.
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Nominal scales
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have no numerical or quantitiative properties.
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Interval scale
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the difference between the numbers on the scale is meaningful.
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Ration scales
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do have an absolute zero point that indicates the absence of the variable being measured.
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