A reviewer reads a research report and notes that the number of subjects in the original sample is larger than the number in the final analysis.Besides attrition of subjects,this discrepancy is likely because
A) data from the control group are not included in the analysis.
B) essential data is missing from subjects no longer included.
C) subjects producing outlying data have been excluded from the results.
D) the final analysis usually discusses data from the experimental group only.

Question

Quizplus · Accepted Answer

If enough data are missing for certain variables,researchers may have to exclude analyses using these variables and may sometimes have to exclude some subjects from data analysis.The analysis discusses data from both the experimental and the control groups.Outlying data are not excluded from study results; such data must be discussed.A final analysis will discuss data from both the experimental and control group.

A Reviewer Reads a Research Report and Notes That the Number