Nutr 405 Athabasca Midterm Questions With Complete Solutions

anecdotal evidence correct answer: Evidence based on personal accounts of incidents can lead to false positive findings Can provide direction for further useful studies population studies correct answer: epidemiological study of incidence, distribution, control and prevention of disease population studies advantages correct answer: enormous variation around the world in disease patterns and in many aspects of lifestyle providing a wealth of information to make inferences about aspects of lifestyle that may cause or prevent diseases based on large numbers population studies disadvantages correct answer: info unreliable in non industrialized countries food consumption data can be misleading (food wastage) difficult to identify which factor is causally related to the disease Historical Studies correct answer: research on past events, previous ways of life, or patterns of change over time information over 70 years old can be unreliable Experimental studies correct answer: studies in which the independent variables are directly manipulated and the effects on the dependent variable are examined case-controlled studies (retrospective study) correct answer: studies comparing patients with a disease to those without Cohort study (prospective study) correct answer: Large number of subjects are recruited. Normally in good health, in terms of the disease being studied. Track subjects over years, until enough of them develop the disease being studied. Case-control study advantage/disadvantage correct answer: fewer subjects good for studying uncommon diseases/ biased recruitment cross-sectional study correct answer: record a parameter that everyone has (wt/age) rather than the presence of