Recognize the difference between a conceptual variable

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Recognize the difference between a conceptual variable and its operationalization.

  1. List three ways psychologists typically operationalize variables: self-report, observational, and physiological. 
  2. Classify measurement scales as categorical or quantitative; further classify quantitative variables as ratio, interval, and ordinal. 
  3. Describe the difference between the validity and there liability of a measure.
  4. Identify three types of reliability (test-retest, interrater, and internal), and explain when each type is relevant. 
  5. Apply the correlation coefficient, r, as a way to describe the direction and strength of a relationship. (r is relevant as a common statistic to describe reliability and validity.)

Reference no: EM132659387

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