This text, now in its fourth edition, provides an understanding of the diversity and use of models used to portray the instructional development (ID) process, while reflecting the many changes in the field that have occurred since publication of the last edition in 1997. Beginning with the belief that an ID model should be selected based on the…

In the past several decades, individuals have been responding more actively to political and personal pressures to identify with a specific group that shares their background. For many people of mixed racial, ethnic, and cultural heritage, making such an identification is complicated. It is important for society to foster the positive development…