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serenaspv01 serenaspv01
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6 years ago
The researcher is studying an intervention designed to reduce job stress in emergency department nurses. Just before the study data collection was to start, an emergency department nurse was killed in the line of duty by a mentally deranged patient. What potential threat to the internal validity of the study does this occurrence pose?
 
  1. Selection bias
  2. History
  3. Testing
  4. Maturation
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mrperrettimrperretti
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6 years ago
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This verified answer contains over 190 words.
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serenaspv01 Author
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6 years ago
Happy Dummy
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3 years ago
Thank you!
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