HN 196 Lecture Notes - Lecture 1: Scientific Method, Blind Experiment, Dietitian
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Animal vs. human: drawbacks: ethical concerns/uncertainties and the results may not apply to humans. Observational studies: can only indicate relationships between certain factors. In clinical trials, an intervention"s effect on a certain disease or health condition is tested using two groups: the experimental group and the control group: randomized trials, single and double blind experiments. Placebo: an imitation treatment that has no effect, given to the control group in placebo-controlled double-blind randomized clinical trials. Does the url end with (cid:862). gov(cid:863), (cid:862). edu(cid:863) , and/or (cid:862). org(cid:863) (typically more reliable) Cdc: center for disease control that supports two large national surveys. Physician with appropriate experience in nutrition: national health and nutrition examination survey, behavioral risk factor surveillance system survey. Numerous institutes within the national institutes of health (nih) that focus on specific areas of research, including cancer; heart, lung, and blood diseases; diabetes; and alternative medicine.
