What type of matching technique could be used to match for the various ages of subjects involved in study in which 4 different drug treatment conditions exist?
A) block randomization technique
B) random blocks technique
C) ad lib matching technique
D) random assignment
Question 2
A large manufacturing company held leadership training courses for lower-level employees.
These courses were run on a volunteer basis and took place at night on the
employee's own time. In evaluating the effectiveness of this course ten years later, it was
found that those persons who had taken the course had advanced further in the company
than those who had not taken the course. What conclusion can be made?
A) It is correct to conclude that the course was successful
B) It is impossible to do a retrospective ten-year evaluation of the course
C) The results may be due to differences in motivation of the two comparison
groups
D) The results are probably due to a calculated manipulation of the data
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Four pieces of evidence that the reticular formation is involved in sleep.
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