Extraneous variables in a research study are best:
a. identified by the researcher.
b. identified by the reviewer.
c. included in the analysis.
d. left out of the critique.
ANS: A
It is always best if the researcher has identified all extraneous variables and has accounted for them in the report.
Hopefully, the researcher has already pointed out the extraneous variables and has, in some way, handled them. If the reviewer is pointing them out, it means the study probably has serious flaws.
It is not always possible or desirable to include extraneous variables in the analysis of a study.
Extraneous variables should not be left out of the critique; all identifiable variables should be addressed.
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