NU 310 UNIT 7 Discussion 2

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Unit 7: Unit 7: Data Collection and Data Quality - Discussion

Topic 2: Reliability and Validity

  

Topic 2: Reliability and Validity

“A   measuring device that is unreliable cannot be valid”. (Polit and Beck, 2012,   p. 336). Analyze this statement and why a tool can be reliable but not valid.   Give examples. Why is it important that reliability and validity information   be documented in a study? What is the impact of having unreliable or invalid   data collection tools? 

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