It’s not black and white, and it shouldn’t be red or blue, either. When I first started my position at the University of Illinois at Chicago back in 1997, I was a faculty member in a newly formed ...

Models assist understanding by allowing one to examine and think about something that is not the real thing, but that may be similar to the real thing. People use a variety of models to obtain a ...

In the last quarter century, the conceptualization of disability has progressed dramatically. Two World Health Organization (WHO) international classification systems serve as bookends to this period.