is a research investigation conducted to identify factors that affect the health and disease of populations. Case study Independent observational study Epidemiological study Laboratory study

Which uses a group of people with different exposures and follows them over time?     Cohort     Cross-sectional     Quasi-experimental     Case-Control

Which type of experiment is a tightly controlled experiment in which an intervention is given to determine its effect on a certain disease or health condition? Animal study Experimental trial Epidemiological study Case control study

Descriptive epidemiology characterizes the amount and distribution of disease within a population and enables the researcher to (check all that apply):     test etiologic hypotheses.    generate testable hypotheses regarding etiology.   evaluate trends in health and disease within a population.   dictate allocation of public health resources.    test for statistical differences between groups.

25. What type of epidemiological study would you conduct to identify risk factors for a common disease and quantify their effects? Group of answer choices D. Study of Cases B. Retrospective Case Control Study A. Prospective Cohort Study C. Cross Sectional Study

Cybersecurity is a critical business issue that demands the attention of business and IT executives. According to a study released by PwC, 38% of surveyed business and IT executives reported phishing scams at their institutions.Source: Data extracted from “Toward new possibilities in threat management,” PwC, 2017 pwc.to/2kwhPJv. a. If you conduct a follow-up study to estimate the population proportion of business and IT executives reporting phishing scams at their institutions, would you use a p of 0.38 or 0.50 in the sample size formula? b. Using your answer in part (a), find the sample size necessary to estimate, with 95% confidence, the population proportion to within 0.03.

What does statistically significance indicates?

a. Randomized Clinical Trial (sometimes also called a Randomized Controlled Study) b. Case Control Study c. Cohort Study d. Longitudinal Study

List and describe two of the common types of explanation for statistical relationship (other than cause-effect).

An investigator wants to assess whether smoking is a risk factor for pancreatic cancer. Electronic medical records at a local hospital will be used to identify 50 patients with pancreatic cancer. One hundred patients who are similar but free of pancreatic cancer will also be selected. Each participant’s medical record will be analyzed for smoking history. Identify the type of study proposed   A A case series   B A retrospective cohort study   C A prospective cohort study   D A case-control study