What is "Response Bias", can someone explain please ?

Question

anonymous · Answer

How the research question, experiment, or people affect the participants

anonymous · Answer

The wording of the question may be loaded in some way to unduly favor one response over another. For example, a satisfaction survey may ask the respondent to indicate where she is satisfied, dissatisfied, or very dissatified. By giving the respondent one response option to express satisfaction and two response options to express dissatisfaction, this survey question is biased toward getting a dissatisfied response.

anonymous · Answer

so bias response, is when the response (to a survey question) is (sort of) forced? Like if the person who is being surveyed has no other option.
And that would mean that the survey (question) is unreliable, correct ?

kirbykirby · Answer

Yes  @WHAT?! Often the question is worded in such a way to influence the responder's answer. 

Also, there may be times when people won't truthfully answer a question because they are ashamed, or it's socially frowned upon (Like a survey asking if people get drunk every week. While it may it may be true for a person, they might not admit to what they perceive as irresponsible behaviour).