Question
Which of the following would be a threat to internal validity? a)sampling by non-probability methods b)some individuals in the control also walk frequently c)relatively small
Which of the following would be a threat to internal validity?
a)sampling by non-probability methods
b)some individuals in the control also walk frequently
c)relatively small sample size
d)choice of statistical methods
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Euclidean And Non-Euclidean Geometry An Analytic Approach
Authors: Patrick J Ryan
1st Edition
1316046753, 9781316046753
