Discarding Unsatisfactory Responses from Collected Data May Have Merit in All

Multiple Choice

Discarding unsatisfactory responses from collected data may have merit in all of the following situations EXCEPT:

A) when the proportion of unsatisfactory respondents is small.
B) when the sample size is large.
C) when the unsatisfactory respondents differ from satisfactory respondents in obvious ways.
D) when the proportion of unsatisfactory responses for each of these respondents is large.
E) responses on key variables are missing.