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Author Question: In order to combat any threats to internal validity during sampling procedures, researchers should ... (Read 16 times)

formula1

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on: Jul 13, 2018
In order to combat any threats to internal validity during sampling procedures, researchers should use .
 
  a. external validity.
  b. systematic sampling.
  c. random sampling.
  d. random assignment.

Question 2

A researcher assigns participants to receive a caffeinated or non-caffeinated beverage. The type of beverage is the subject variable.
 
  Indicate whether the statement is true or false


okolip

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Reply #1 on: Jul 13, 2018
Answer to Question 1

D

Answer to Question 2

F


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