questionnaire - a set of questions with a choice of answers, created to collect information, biased - unequal, not equally represented, one-sided, unbiased - equal, impartial, fair, time period - a duration of fixed length, leading question - a question that prompts or encourages a particular answer, unreliable - not trusted nor believable, imprecise, not consistent, open question - a question that encourages respondents to answer in their own words and offers opportunities to state thoughts and feelings, population - a complete set of items or individuals, sample - a selection of items of individuals representing the complete set it is drawn from, closed question - a question with a limited number of answers that can only be marked on a scale or ticked,

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