Suggest two reasons why respondents may not tell the truth when answering questions in a social survey.

One reason why the respondents may not tell the truth when answering the questions in a social survey is because the respondents might feel embarassed by the questions. For example : people will less likely to answer a questions truthfullly about their wealth. It is so because they want their privacy and their private live to be protected and they don't want others to under-estimated them.

Another reason why the respondents may not tell the truth when answering the questions in a social surveys is because people might afraid of implications. For example : a former gangster will not answer truthfully about their past it is because they don't want to implicate themselves or the gangster group.