NTS 135 Lecture Notes - Lecture 5: Scientific Method, Blood Sugar
Document Summary
Hypotheses: tentative explanations by a scientist to explain a phenomenon. Double-blind study: neither participants nor researchers know the participant"s assignment or outcome of the study until it is complete. Epidemiology: study of how disease rates vary among different population groups. Control group: participants who are not given treatment. Placebo: inactive treatment: figure 1-7: types of experiments. This diagram shows how data from various types of experiments support the hypothesis that obesity leads to the development of type 2 diabetes. Case-control studies show that obese patients are much more likely to have type 2 diabetes than the leaner comparisons group that is matched for other characteristics. Growing confidence in the research hypothesis that obesity leads to the development of type 2 diabetes. Laboratory animal studies show that overfeeding animals that leads to obesity also often leads to the development of type 2 diabetes. Human studies show that weight loss can improve blood sugar control in many people.
