For practical reasons, many psychological experiments on humans ...

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For practical reasons, many psychological experiments on humans
 
  a. Draw their subjects from introductory psychology courses
  b. Are truly randomly selected
  c. Are not approved by the IRB
  d. Require approval of college department chairs

Question 2

How do experimenters decide which methodology to use to test a hypothesis?
 
  a. A thorough review of the literature helps to reveal techniques generally used
  b. Trial and Error
  c. It doesn't matter; Statistics can make sense of any method
  d. If the hypothesis is to be supported, it will be proven any way you test it.

[Heffejeff]

Answer to Question 1

a

Answer to Question 2

a

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Thank you!

[Heffejeff]

Happy to help