In 1947, Alfred Charles Kinsey performed research on human sexuality that profoundly influenced social and cultural values in the United States and many other countries worldwide during the 1960s with the advent of the sexual revolution. There are many tests already on OKCupid that measure your rating on the Kinsey scale.
In 1974, Fritz Klein built on Kinsey's scale, adding multiple dimensions to consider. This test is a long one! It will ask several questions about your past, present, and ideal sexual prefrences, and assign you a rating on the Klein Grid. The meaning and considerations of that assignment will be discussed at the end of the test.
You will notice that each question is repeated with different options for answers. If you feel strongly about an option with the words "or less" in the answer, skipping the question in favor of only answering the similar question will give you a more accurate score.