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Author Question: In actual practice, the threshold is operationally defined as the _________ of the points in each ... (Read 291 times)

mmm

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on: Jun 19, 2018
In actual practice, the threshold is operationally defined as the _________ of the points in each trial block where the observer switches from Yes to No (or No to Yes).
 
  a. mean
  b. standard deviation
  c. mode
  d. range

Question 2

In studies with a group of individuals being tested in a series of treatment conditions, factors such as history, instrumentation, and maturation threaten ____.
 
  a. internal validity only
 b. external validity only
 c. both internal and external validity
 d. neither internal nor external validity


ju

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Reply #1 on: Jun 19, 2018
Answer to Question 1

A

Answer to Question 2

a


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mmm

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Reply #2 on: Jun 19, 2018
Thank you!


ju

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Reply #3 on: Jun 19, 2018
Happy to help


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