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Author Question: Extraneous variables need to be controlled to ensure that the experiment is externally valid. ... (Read 18 times)

Alainaaa8

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on: Jun 29, 2018
Extraneous variables need to be controlled to ensure that the experiment is externally valid.
 
 Indicate whether the statement is true or false

Question 2

A combination of two or more probability sampling techniques is called a(n) _____ sample.
 Fill in the blank(s) with correct word


covalentbond

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Reply #1 on: Jun 29, 2018
Answer to Question 1

F
Controlling extraneous variables will assure researchers of internal validity, not external validity.

Answer to Question 2

multistage area


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