귀납적 방식과 연역적 방식의 기술자료가 중학생들의 생물 지식 구성에 미치는 영향

The most convincing evidence that a factor such as dietary fat is causally related to breast cancer would be obtained from a randomised controlled trial in which exposure to dietary fat intake was systematically varied. A limitation of randomised controlled trials of breast cancer prevention, howeve... View More