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### 20 Cards in this Set

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 Criteria Measures of expected performance. Reliability The CONSISTENCY of a measurement. Split Half Reliability 2 sections of a test. May be even vs. odd. Then correlated to find consistency. Test-Retest Reliability Give a test today, then again in X days. Then correlate the 2 scores to find consistency. Internal Consistency Typically a measure based on the correlations between different items on the same test (or the same subscale on a larger test) Validity The degree to which a measurement actually measures what you say it measures. Ultimate Criterion What we would like to be able to measure if it were possible to do so.It is a theoretical concept. Actual Criterion What you can actually measure. Criterion Relevance Portion of actual criterion that overlaps the ultimate criterion. It represents the validity of the actual criterion. Think of 2 circles that cross each other. This is the intersection of the 2 sets. Criterion Deficiency Part of the ultimate criterion that we miss when we use the actual criterion or the degree to which we are not measure important aspects of performance. Not in the intersection of UC. Criterion Contamination It will contain some part that measures aspects not related to the true measure of success. The part of actual criterion that does not overlap with ultimate criterion. Error Random variation Bias inclination to present or hold a Partial perspective at the expense of (possibly equally valid) alternatives. Bias can come in many forms. Opportunity Bias Advantage that provides people with a higher level of performance, irrespective of their own skill level. Group Characteristic Bias If something about the group creates higher (or lower) performance, irrespective of an individual's capability. Bias in Performance Ratings The portion of the actual criterion which is not correlated with the ultimate criterion but correlated with variables used by raters in the subjective judgements. Halo Effect Occurs when a supervisor rates a subordinate on all dimensions of performance on the basis of knowledge of only one dimension. Knowledge of Predictor Bias The criterion for success in training could be thought of a predictor of later performance on the job. Knowing the employee's success level in training could influence the ratings. Content Validity Refers to the extent to which a measure represents all facets of a given social construct Relationship between Reliability and Validity You can have a reliable test that is not valid, but you cannot have a valid test that is not measurable. Reliability is a primary concern because you need it to be valid.