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Author Question: Threats to external validity a) Include testing and instrumentation b) Are of concern after the ... (Read 39 times)

abc

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on: Jul 31, 2018
Threats to external validity
 
  a) Include testing and instrumentation
  b) Are of concern after the research is conducted
  c) Are related to the artificiality of the experimental condition
  d) None of the above is true regarding external validity

Question 2

A threat to internal validity that occurs when a pretest effects future performance on a posttest is known as
 
  a) Maturation
  b) Instrumentation
  c) History
  d) Testing


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ong527

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Reply #1 on: Jul 31, 2018
Answer to Question 1

c

Answer to Question 2

d


abc

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Reply 2 on: Jul 31, 2018
Thanks for the timely response, appreciate it

vickybb89

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Reply 3 on: Yesterday
Excellent

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