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Author Question: If an extraneous variable affects all groups equally: a. within-groups variance is increased. b. ... (Read 91 times)

dmcintosh

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on: Jun 20, 2018
If an extraneous variable affects all groups equally:
 
  a. within-groups variance is increased.
  b. it is more difficult to reject the null hypothesis.
  c. there is increased probability of a Type II error.
  d. all of these

Question 2

If individuals in different groups are not treated identically except for the independent variable, then:
 
  a. within-groups variance is increased.
  b. the F ratio is decreased.
  c. a possible confound is introduced.
  d. between-groups variance is decreased.


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TheNamesImani

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Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

C


dmcintosh

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Reply #2 on: Jun 20, 2018
Thank you


TheNamesImani

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Reply #3 on: Jun 20, 2018
No problem :)


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