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6 years ago
The control group time series design overcomes the one-group time series design problem of
 
  a. maturation. c. nonrandomization.
  b. history. d. all of these are true.

Ques. 2

Indicate whether the following statements are true or false. There are several distinct types of validity that an instrument may possess.
 
  a. true b. false
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6 years ago
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#2
6 years ago
Exactly what I needed for my quiz Smiling Face with Open Mouth
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