Successfully finding statistical data that is not in a standard resource requires good inquiry and critical thinking skills. Accurate speculation about how the data would be gathered and who would have gathered it can help determine where it might have been published. For example, research on the smoking habits of college students may have been collected by market researchers (and noted in business sources) or collected by the Student Health Center or a professor (and published in a journal). The following are some things to think about when pursuing hard-to-find data: