Chapter 1. Science Literacy
Introduction
Science Literacy Activity
1.1 Types of Nutrition Studies
Click to match the type of nutrition study to the correct description.
Randomized Controlled Trial Epidemiological Study Experimental Model System | Includes animal experiments, cell culture studies, and biochemical analyses Recruits and randomly assigns subjects to a control group and an experimental group Observes the association between variables in a population |
1.2 Analyzing the Results
Click to match each term to the correct description.
Experimental Group Control Group Placebo Correlational Evidence | Subjects who receive treatment Data that demonstrates a relationship but does not prove cause or effect Subjects who do not receive treatment A drug with no active properties |
1.3 Sources of Evidence
Click to match each source of evidence to the correct description.
Peer-Reviewed Publication Registered Dietitian Nutritionist Academy of Nutrition and Dietetics | Food and nutrition expert who has met academic and professional requirements Collections of research that have been vetted by multiple experts in the field Professional organization of registered dieticians Individual who may or may not have background or credentials in nutrition |
1.4 Evaluating an Abstract
Read the following research abstract and answer the questions that follow.
A 2013 study was undertaken by a team of researchers with doctorates in nutrition and medicine at an accredited research university. The study investigated risk factors for vitamin D deficiency in people who live in Denmark and people who live in Australia. By studying patterns in the population, the researchers demonstrated a correlation between the lack of sunny days in Denmark and the high incidence of osteoporosis there, compared to the abundant sunny days and low incidence of osteoporosis in Australia. However, the results could not rule out other factors in the subject’s diet or lifestyle as possible causes of the discrepancy in incidence.
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Identify the type of study design employed by these researchers.
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1.5 Researching the Literature
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Devon is doing some research for his upper-level nutrition course and is looking to obtain the most accurate and credible first-hand information. Devon’s literature search should focus on which of the following sources?
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1.6 Wrap it Up
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