'Validity coefficient' presentation slideshows

Chapter 4 Validity

Chapter 4 Validity. Chapter 4 Outline. Understanding Validity Evidences of Validity Content Validity Evidence Evidence of Logical Validity Criterion-related Validity Evidence Factors that Affect Criterion-related Validity Construct Validity Evidence Criterion-referenced Test Validity.

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Chapter 7 Evaluating What a Test Really Measures

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Evaluation of measuring tools: validity

Evaluation of measuring tools: validity.

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CONTENT VALIDITY

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Employee Selection

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Chapter 17 Assessing Measurement Quality in Quantitative Studies

Chapter 17 Assessing Measurement Quality in Quantitative Studies. Measurement. The assignment of numbers to represent the amount of an attribute present in an object or person, using specific rules Advantages: Removes guesswork Provides precise information Less vague than words.

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Psychometric theory Tim Wildschut Office: 4009 Email: timw@soton.ac.uk

Psychometric theory Tim Wildschut Office: 4009 Email: timw@soton.ac.uk. Programme: February 18: Advantages of standardized measures, levels of measurement, and validity. Nunnally, J. C., & Bernstein, I. H. (1994). Psychometric theory. New York: McGraw-Hill. Chapters 1 and 3.

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Reliability

Reliability. Consistency of measurement. Reliability coefficient: correlations among repeated applications of same measure. Range from -1.0 to 1.0 (lowest reliability approaches zero) Forms of Reliability: test-retest parallel forms internal consistency (raters/items).

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