In using a matched-subjects design, it is important to remember that matching on more than one continuous variable
A) is difficult to accomplish and will usually result in significant participant loss.
B) is preferred to matching on dichotomous variables.
C) is difficult to accomplish and usually results in skewed distributions.
D) often confounds the results if the variables are strongly related to performance on the dependent measure(s).
Question 2
Matching participants on the variable of gender is relatively simple because
A) gender of participants has only two levels.
B) gender is a continuous variable.
C) many studies use gender as a variable.
D) determining gender is a relatively straightforward procedure.
It is important to ask patients what other health care providers they are seeing, such as the dentis
This young child is pulling at the ear and acting fussy, two important signs of otitis media.
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