QUESTION 5 Refer to study outlined in number one to complete the sentence given
ID: 3071812 • Letter: Q
Question
QUESTION 5 Refer to study outlined in number one to complete the sentence given below. Because respondents to the survey may not accurately remember their impressions of their hospital stay (or their memory may be influenced by the subsequent course of their recovery), the results may be affected by A undercoverage bias. . , response bias. selection bias (bias that results from a method of sample selection that does not accurately reflect the population) non-response bias. . D. QUESTION 6 Flavonoids are compounds that are especially abundant in fruits and vegetables, as well as wine, tea, chocolate, and spices. A large study was undertaken in Scotland to investigate whether dietary flavonoids can reduce the risk of colorectal cancer. The study group consisted of 1456 colorectal cancer patients and a cohort of 1456 "population-based controls matched on age, sex, and residence area." All subjects completed a food frequency questionnaire. Based on this, researchers found that those in the highest quartile of flavonoid consumption had a reduced cancer risk relative to those in the lowest quartile for several classes of flavonoids. This is a(n) OA Experiment. O B. Observational study with a Case-Control design. . O D.Observational study with a Prospective Cohort design. Cross-sectional observational study.Explanation / Answer
5)
Undercoverage occurs when some members of the population are inadequately represented in the sample
Response bias (also called survey bias) is the tendency of a person to answer questions on a survey untruthfully or misleadingly.
Selection bias is the bias introduced by the selection of individuals, groups or data for analysis in such a way that proper randomization is not achieved, thereby ensuring that the sample obtained is not representative of the population intended to be analyzed. It is sometimes referred to as the selection effect.
non-response bias is a phenomenon in which the results of elections, studies, polls, etc. become non-representative because the participants disproportionately possess certain traits which affect the outcome.
b) Response bias is correct
as the response may be misleading because they may not remember the impression accurately