“…This document discusses the results of the research program, which has produced to date eight papers appearing in conferences in which the abstracts are reviewed (four photo-reduced mat pages each) (Hansen & Clements, 1987;Hansen & Clements, 1988;Hansen & Clements, 1989a;Hansen & Clements, 1989b;Carlson & Clements, 1990;Cummings & Clements, 1990;Cummings, Clements, & Hansen, 1989;Clements & Lim, 1987); one paper accepted for publication in a journal (Lim & Clements, 1990 [32 pages]); one paper to be submitted to a journal (Hansen & Clements, 1990 [14 pages]); and one Ph.D. thesis (Hansen, 1988 [430 pages]).…”