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Author Question: One basic purpose of experimental design is A) to reduce the number of participants needed. B) ... (Read 43 times)

jilianpiloj

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One basic purpose of experimental design is
 
  A) to reduce the number of participants needed.
  B) to control variance.
  C) to keep the alpha level below .05.
  D) to observe contingencies.

Question 2

In order to study causal relationships,
 
  A) the null hypothesis must not be rejected.
  B) external validity is essential.
  C) we must use a t-test or F-test.
  D) there must be variation of the independent variable.



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Gabe

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Answer to Question 1

Answer: B

Answer to Question 2

Answer: D




jilianpiloj

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Reply 2 on: Aug 4, 2018
Thanks for the timely response, appreciate it


DylanD1323

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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