Which of the following is considered a study of association: a. Cohort study b. Cross-sectional study c. Case-control study d. Ecologic study e. All but A
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- Large numbers of microbes: (Select all that apply) a. contribute to population variability b. create statistical reliability c. contribute to population consistency d. give the same results in studies as smaller populationsThe species that can be evaluated by the CRT is:a.Gerbilb.Guinea pigsc.Rabbitd.RatAt the beginning of a period of observation, those members of the population who are "capable of" developing a disease or condition are known as a. Population at risk b. Preexisting cases c. Prevalent cases d. Incident cases
- stochasticity is a result of I temporal variation in demographic rates O a. demographic O b. environmental and demographic C. sex-bias O d. environmentalIn a group of patients, it is reported that drug p is effective only in individuals of the recessive phenotype. if q = .6 and p to .4 what fraction of patients would benefit from the treatment. Assume that the population is in HW equilibrium? a. .25 b. .36 c. .4 d. .6What is the true test of an explanatory model? A. This model seeks to predict by understanding cause and effects B. The process allows you to compare and contrast alternatives C. This approach quantifies economic variables D. It involves the identification and measures of a phenomena E. It is considered a fact – finding approach to understanding a phenomena
- Cross-sectional surveys measure:A. The prevalence of various demographic characteristics in a well-defined populationB. The exposure histories of a well-defined populationC. The disease states in a well-defined populationD. All the aboveScenario 2: Sarah kicked a fully inflated soccer ball 100 times and measured how far it traveled. Next, she kicked a partially inflated soccer ball 100 times and measured how far it traveled. 1. Write a hypothesis: 2. Independent variable: 3. Dependent variable: 4. Controlled variables (at least 3): a. b. 5. Control Treatment: 6. Experimental Treatment:Discuss the various methods/indicators used to measure different diseases in a population. ● What is the rationale for obtaining health-related information within a population? ● Compare one method/indicator used and comment on how they differ or are similar.