The order of both questions and answers could cause your survey respondents to provide biased answers.

In some cases, the initial questions of your survey could influence the answers to later questions. For example, if your first question is about how satisfied customers are with a highly successful feature, and your second question is about their overall satisfaction, responders are more likely to give positive answers.

As for answers, in online and print surveys, respondents usually select from the first few answer options. During phone surveys, respondents are more likely to opt for some of the latter options.

A way to avoid order bias is to randomize the order. For example, you can group related questions into blocks, mix up these blocks, and randomize the order of answers — that's what we do here at Uxcel.