영어 주제찾기 자작문제

It is always difficult to trace the historical development of a theory that has been the subject of considerable direct study and has directly or indirectly spawned a good deal of additional research. This is certainly true of the Health Model, perhaps even more than usual because the Model grew out of a set of independent, applied research problems with which a group of investigators in the Public Health Service were confronted between 1950 and 1960. Thus, the theory and development of the Model grew simultaneously with the solution of practical problems. Two classes of circumstances should be described which were largely responsible for the type of model that ultimately emerged. These concern the settings in which research was required and the training and background experiences of those who participated in the development of the Model.

1) the way to develop The Health Model

2) historical origins of The Health Model 

3) why tracing the development of a theory is difficult

4) the relationship with the theory and development

5) research contents of The Health Model

내용이해가 100%까지는 안된 상태라 조금의 오류가 있을 수 있습니다(오류가 있다면 알려주세요)