Health Promotion And Disease Prevention Essay

1239 Words Sep 28th, 2016 5 Pages
According to the definition from Social Research Methods, internal validity is “the approximate truth about inferences regarding cause-effect”. In other words, what was done in the study (for example, a specific program) caused the observations, but not anything else. External validity is “the degree to which the conclusions in the study would hold for other persons in other places and at other times.” In other words, the results of the study have to translate to the real world.
Health promotion and disease prevention have been increasingly recognized as an effective way to promote better health among individuals and population as a whole. Programs help individuals to make healthier choices and reduce risk of illnesses in the future. These programs are also designed to save money on treating the diseases, which is costly, compared to preventing them. There are several theories used for the population’s health promotion and disease prevention. They help to identify why and how certain conditions develop, relate them to behaviors and come up with programs to promote better health and prevent illnesses.
One of those theories that will be covered more in detail in this paper is called Stages of Change Model. It was developed by James Prochaska, Ph.D. and Carlo DiClimente, Ph.D. in late 1970s (Horvath, T. et al, 2016). It consists of five distinct stages and the sixth one being different depending on the patient. These stages have a specific order and the preceding one…

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