Psychological etiology refers to the scientific investigation into the origins of a disorder that cannot be explained biologically. Etiology is complicated by the fact that most disorders have more than one cause. Early etiological theories were the Freudian and post-Freudian psychoanalytic beliefs.Click to see full answer. Just so, what is an example of etiology?e·ti·ol·o·gy. Use etiology in a sentence. noun. Etiology is defined as the science of finding causes and origins. An example of etiology is knowing that some of the causes of high blood pressure are smoking, lack of exercise, stress and a diet high in salt and fat.Subsequently, question is, what is the difference between etiology and epidemiology? Differentiate between ‘Etiology and Epidemiology’. Etiology is the study of the cause of disease while Epidemiology deals with the cause as well as the spread of disease. Moreover, what does etiology mean? The noun etiology is usually used by doctors and researchers who study disease and other medical topics. It means “origin” when you use it to describe illness or medical disorders, and it also refers to the study of the way things are caused.What are etiological agents?Etiologic agent. – “the causative agent of a disease condition; often a microorganism or toxin.” (B36)