NUSCTX 10 Lecture Notes - Lecture 19: Osteoporosis, Junk Food, Omega-3 Fatty Acid
1 Nov 2016
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Document Summary
Data collection from a sample of the population at one point in time: cross-sectional. Data collection from same individuals followed over a long period of time. Pitfalls: lack of control of many factors can produce misleading associations: longitudinal (retrospective, prospective, correlation doesn"t mean causation. Studies that explore the effects that result from altering human diets in as controlled a fashion as possible. Pitfalls: humans are bad at sticking to diets and following directions. Studies that examine nutrient requirements and functions on animals. Many experiments are not ethical to perform on humans. Pitfall: can be difficult to generalize results to human populations. Abstract: provides brief summary of the study; describes the major findings and their relevance. Introduction: provides background information to understand how the findings of the paper will advance knowledge in the field. Materials & methods: lists the materials and experimental techniques used to obtain results. Results: explains data obtained from the experiments; often includes graphs, charts, tables, etc.
