1. How do you understand the concept of measurement, including measurement validity and reliability, in criminal...

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1. How do you understand the concept of measurement, includingmeasurement validity and reliability, in criminal justiceresearch?

2. How do you view measurement issues in police auditing,particularly in performance audits?

3. What specific measurement criteria would you like to use,if you are hired to conduct an audit on police performance in crimeclearance, that you believe would yield strong validity andreliability?

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Answer 1 Measurement involves assigning scores to individuals so that they represent some characteristic of the individuals But how do researchers know that the scores actually represent the characteristic especially when it is a construct like intelligence selfesteem depression or working memory capacity The answer is that they conduct research using the measure to confirm that the scores make sense based on their understanding of the construct being measured Reliability Reliability refers to the consistency of a measure Psychologists consider three types of consistency over time testretest reliability across items internal consistency and across different researchers interrater reliability Validity Validity is the extent to which the scores from a measure represent the variable they are intended to When a measure has good testretest reliability and internal consistency researchers should be more confident that the scores represent what they are supposed to There has to be more to it however because a measure can be extremely reliable but have no validity whatsoever Answer 2 A significant proportion of todays police organizations seem to remain narrowly focused on the same categories of indicators that have dominated the field for decades a See Answer

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