when are missing values considered does i do not know do not apply does not apply missing value missing values in a likert scale can i add missing values to a likert how to find a missed value on the likert scale what is the missing value can i impute missing value on likert missing value example likert scale missing value in likert when is missed value considered in likert is i do not know/does not apply missing value missing value mean do i know does not apply or i think does not apply do you have to add missing value if you have a question on a likert scale does not apply means missing values missing value example which response is missing value when i do not know do i have to consider it to be a missing value missing values in likert