BPK 110 Lecture Notes - Lecture 2: Saturated Fat, Trans Fat, Food Marketing

• School: Simon Fraser University
• Department: Biomedical Physio & Kines
• Course: BPK 110
• Professor: Diana Bedoya

Document Summary

A hypothesis is tested under controlled conditions. Typically use 2 groups if similar subjects: treatment group: undergoes the treatment, control group: does not undergo treatment, may receive placebo, observe differences between groups when only one/few variables are changed between the two groups. A study is increasingly credible if it is: bli(cid:374)d: the su(cid:271)je(cid:272)ts do(cid:374)"t k(cid:374)o(cid:449) (cid:449)hi(cid:272)h g(cid:396)oup they a(cid:396)e i(cid:374, double-blind: both the researchers and the subjects do(cid:374)"t k(cid:374)o(cid:449) (cid:449)ho is i(cid:374) (cid:449)hi(cid:272)h g(cid:396)oup. Epidemiological and population studies=>we do not change anything. Observation: people who eat whole grains are less likely to develop type-2 diabetes. Hypothesis: whole grains regulate blood glucose levels. Experimental group: consumes whole grain products for 6 months. Biochemistry, molecular biology and computer modelling techniques can also be used to study nutrition using the scientific method. Collecting data is important, but it is also imperative that this data is analyzed properly, and that accurate conclusions drawn.