Operational Defintions

Operational Defintions - Different ways to operationalize...

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Different ways to operationalize variables Self repot measures o By recording people’s answers to verbal questions about themselves in a questionnaire or interview Observational measures o By recording observable behaviours Physiological measures o By recording biological data such as brain activity, hormone levels, heart rate, etc. IV: age group DV: distinguish Observational Bystanders: people in the lineup who are innocent Photo line-up procedure: recognizing the perpetrator in a line up of people Perpetrator: the one holding up the bank Construct Validity Measure operational definition of construct validity with other possibilities Valid: true: supported by data Does the device, technique, or operation measure what it was intended to measure? A matter of degree Slightly dissatisfied Construct validity is evaluated, and demonstrated, by collecting data Different methods of evaluating and demonstrating construct validity exist depending on the construct being measured Methods employed to evaluate construct validity Predictive validity o
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  • Fall '16
  • Isabelle Boutet
  • Correlation and dependence, Pearson product-moment correlation coefficient, Bone fracture, Spearman's rank correlation coefficient

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