Types of Measures

Types of Measures - Types of Measures Demographic...

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Types of Measures Demographic variables, e.g., age, sex Awareness variables, e.g., Please list… Cognitive (knowledge) variables: Bloom’s– knowledge, comprehension, analysis, synthesis, evaluation Psychosocial variables, e.g., attitudes, beliefs, motivation Skill variables, e.g., ability to perform…
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Desirable Characteristics of Data - 1 Psychometric qualities – reliability, validity, and fairness Reliability – consistency in the measurement process; the degree to which a measure is free from errors of measurement; obtained score = true score + error score Types of reliability Internal-consistency reliability (intercorrelations;
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Desirable Characteristics of Data - 2 Validity – measures what it is intended to measure; correctly measuring concepts under investigation Types of validity Face - on the face (surface) Content - items are a representative sample of the content &/or behavior of the domain being addressed; typically created by an expert panel
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Types of Measures - Types of Measures Demographic...

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