This article briefly describes soft modeling with partial least squares (PLS) in a non-technical manner. Soft modeling with PLS was developed by Herman Wold (1985) for model building and evaluation in situations with high complexity but without well-articulated theories. Because many believe that this is the situation in education, we believe that soft modeling with PLS is a useful tool for educational research.
Pulos, Steven and Rogness, Neal, "Soft Modeling and Special Education" (1995). Peer Reviewed Articles. 3.