As useful as LISREL may be in model estimation and testing, its most significant contribution to date is the encouragement and example it gives for right thinking about research and right planning of research. The encouragement to hypothesize the best possible model for the process that is the object of study, and to plan measurements that…

A series of analyses were made to relate attitudinal and achievement outcomes in an assessment of student achievement and of student and instructor attitudes, made by the U.S. Air Force Human Resources Laboratory (AFHRL) and the Air Training Command (ATC) as part of their joint Service Test of the PLATO IV system at Chanute Air Force Base. Data…