Nonresponse Bias: Occurs when certain groups within the target population are less likely to participate in a public opinion poll, leading to potential inaccuracies.
Question Wording Bias: When phrasing questions in ways that may unintentionally influence respondents' answers and introduce bias into the results.
Selection Bias: Occurs when participants selected for inclusion in a public opinion poll do not accurately represent the entire target population, resulting in skewed results.