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Author Question: Holding a variable constant is a technique for removing one threat to ____ but it can limit the ____ ... (Read 190 times)

ap345

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on: Jun 19, 2018
Holding a variable constant is a technique for removing one threat to ____ but it can limit the ____ of an experiment.
 
  a. internal validity; external validity
  b. external validity; internal validity
  c. internal validity; reliability
 d. external validity; reliability

Question 2

In sampling notation, N refers to the ____.
 
  a. number of cases in the sampling frame
  b. number of cases in the sample
 c. number of possible subsets
 d. sampling fraction


huda

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

a

Answer to Question 2

a


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