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Discussion: When doing surveys for research, what can we do regarding missing data in our questionnaires...

Discussion:

When doing surveys for research, what can we do regarding missing data in our questionnaires Compare the following techniques and suggest a new alternative:

-replacing the missing value with a value from a similar respondent

-if there are other similar questions to the one with missing data, use the answers to the other similar questions as a guide to determine the replacement value

-use the mean of a subsample of the respondents with similar characteristics that answered the question to determine, etc)
a replacement value.

-use the mean of the entire sample that answered the question as a replacement value

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Answer #1

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When doing research and finding missing data in the questionnaires the following techniques as below are evaluated -

- Replacing the missing value with the value from similar respondents - This can lead to skewing the data and the analysis will not depict the correct evaluation.

- If there are other similar questions to the one with missing data, use the answers to the other similar questions as a guide to determine the replacement value - This is a value prediction technique but it will depend a lot on the researcher's perspective on how the researcher perceives the response of the user.

- Use the mean of the subsample of the respondents with similar characteristics that answered the question to determine a replacement value - This will ensure to have close to similar values but again how well has the researcher been able to pick the set of similar respondents will hold the key.

- Use the mean of the entire sample that answered the question as a replacement value - This will lead to having no effect on the research as the data is already bending towards the mean

The other option that the researcher can apply is to ask a third person who is completely unaware of the research to read the data along with the missing data and provide his or her perspective on the missing values. The researcher can repeat this with several representatives in a group think technique and fill the replacement values. This will provide him enough values on the mean and median along with some outliers which can provide a more realistic analysis.

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