Latent variables are involved in almost all kinds of regression models. In a broad sense, all additive error terms in regression models are latent variables simply because they are not measured in research. Hereafter, however, a narrower sense of latent variables is used when referring to latent variable models.
There are four common nursing care model s: functional nursing, team nursing, p rimary nursing, and case management nursing. T he two models of care used in. this study are the functional nursing and team nursing. Functional nursing is a model in which care is organized and provided according to th e. task.
Functional medicine addresses the underlying causes of disease, using a systems-oriented approach and engaging both patient and practitioner in a therapeutic partnership. It is an evolution in the practice of medicine that better addresses the healthcare needs of the 21st century.allmarks of a functional medicine approach include: 1  Patient-centered care. 2  The focus of functional medicine is on patient-centered care, promoting health as a positive vitality, beyond just the absence of disease.