Some good diversity quizzes are available online at PBS.org, EdChange.org and CastOnline.ILSTU.edu. The quizzes have multiple-choice questions and provide the answers. Topics covered include biological characteristics, cultural practices and societal views.
Public Broadcasting System's 10-question quiz focuses on genetic variation and world populations. Two points it teaches are that there is a lot of genetic mixing throughout the world and that populations that are geographically close to one another share more genetic similarity than groups that may look more alike.
EdChange provides quizzes on equity and diversity, sexism, and classism and poverty. Many of the questions cover statistical information and other findings of formal research.
Illinois State University offers a number of self-awareness assessments and knowledge quizzes on diversity, cultural sensitivity, hidden biases and multicultural practices. Many are links to other sites' quizzes.