Do you think that there exist differences between paper survey and face survey for the MCDM and it effects the result of the MCDM analyze?
Dear: Emran......
Let me share with you that ...... MCDM is a validation of our respondent consisyency, that's why some time we found the difference between paper survey and face survey.............
All the best
Hengky
Dear Roger
Face survey means that explanation should be made face to face not just using paper by email.
Thank you for your clarification.
I think that if you want to know more about the possible rôle of emotion (affect) on the preferences and decisions made the face survey might be more fruitful.
I am agree with dear @Emrah.
By the way, Dear @Roger: Face survey means we ask a questions directly face to face to the respondent, and we can know it is a honest answer or just answer it.
If the questionnaire has been designed appropriately, there should not be any difference in answers of respondents whether survey is being carried out face-to-face or through email; rather the questions should be self explanatory and objective in nature.
Dear All
Actually, I agree,that they should response it honestly. Bust as a human being we do not know their mind at that time. maybe they have family problem or office problem. so they just response ASAP to go through.