How to handle missing data in a questionaires


New Member

I have 2 parts in my quesitonaires a and b
I found that some data in part b are missing (respondent) did not fill in.

So what should I deal in the data analysis. Should I remove all response which has incomplete data? Is there any bias later on in the calculation?



Dark Knight
It is actually depending on the situation.
The variable b is catagorical or continuous or discrete ?

if your missing percentage is less than 5 or 2 % then you can remove the missing records...
Before that
please check the average of 'a' in missing and non missing group. if it is the same then you can confidently delete the missing records.