A method and apparatus for assigning a survey to a respondent are provided. According to one technique, a set of one or more screening questions are generated and provided to the respondent. Input data is received in response to the respondent answering the set of one or more screening questions. Based on how the respondent answered the set of one or more screening questions, it is determined which survey should be presented to the respondent. According to another aspect, the set of one or more screening questions is generated based on the target participation criteria that is associated with one or more active surveys.