Winsteps

"Principles, rules, theory and concepts are all examples of models. Models are by definition simplifications of reality. Because they are a simplification, there is no one model, no one theory, that is all encompassing and failsafe to use. Models should not be trusted. At the same time, we need them to guide us in action and decision-making. Without models such as principles and rules, life would just be a long series of random experiments without any ability to learn from one day to the next. For that reason, we have articulated a set of principles – a model – of what we think best describes [social-science measurement]. These principles can guide us as we learn, experiment and transform our [latent variables]. These principles are not an attempt at completeness, but instead are crafted so that they are useful and effective principles to learn and internalize." [My changes]
Flinchbaugh, J. (n.d.). Beyond lean: Building sustainable business and people success through new ways of thinking. p.7 Link