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Author Question: What is the primary goal for randomly assigning participants to treatment conditions in an ... (Read 115 times)

soccerdreamer_17

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on: Jun 19, 2018
What is the primary goal for randomly assigning participants to treatment conditions in an experiment?
 
  a. Increase the ability to generalize the results.
 b. Avoid selection bias.
 c. Ensure that the individuals in the sample are representative of the individuals in the population.
  d. Minimize the likelihood that a participant characteristic becomes a confounding variable.

Question 2

Assume that the scores on a test of anxiety are normally distributed. Assume that the mean score is 6 and the standard error is 0.25 . About 68 of the scores will fall in the range ____.
 
  a. 5.75 to 6.25
  b. 5.5 to 6.5
 c. 5.25 to 6.75
  d. 5.0 to 7.0


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smrtceo

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Reply #1 on: Jun 19, 2018
Answer to Question 1

d

Answer to Question 2

a


soccerdreamer_17

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Reply 2 on: Jun 19, 2018
Excellent

ttt030911

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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