3.0

 While this contains some out of date references (say, the marshmallow experiment which has since had further studies done with differing results), it really is a collection of some common sense items when working with a diverse group. However, common sense for these groups isn't necessarily intuitive. Working with diverse groups is something that needs thought about and practiced - although patience, thoughtfulness, and a sense of decency go a long way in helping.

Common pitfalls and errors are identified and suggestions provided for improvements - a good, basic overview of things to consider when working within a diverse group.