Answer: Incidence- Prevalence bias.
(In the cross sectional studies, the incidence- prevalence bias occurs when the goal of the study is to make interference from included prevalent cases in relation to disease risk.)
Which type of bias occurs in cross-sectional studies when the goal of the study is to...
Prevalence-incidence bias occurs: a.The exposure is associated with a decrease in both the incidence and prevalence of disease b.Most commonly in cross-sectional studies c.The outcome has an influence on the duration of disease
Prevalence-incidence bias occurs: a The exposure is associated with a decrease in both the incidence and prevalence of disease b Most commonly in cross-sectional studies c The outcome has an influence on the duration of disease d The disease has long duration (this is wrong, dont choose it)
Prevalence-incidence bias occurs: a.The exposure is associated with a decrease in both the incidence and prevalence of disease b.Most commonly in cross-sectional studies c.The outcome has an influence on the duration of disease d.The disease has long duration
Select the advantages of cross-sectional studies compared to other types of observational studies. Choose all that apply. It takes relatively less time to conduct in comparison with longitudinal cohort studies It is relatively easy and less costly to conduct compared with cohort studies It can be useful to study many exposure and outcome (disease) relationships at the same time to generate new hypotheses. It can let us determine the temporal sequence between exposures and outcomes. It is suitable for examining...
1. Cross-sectional study can not measure Incidence risk Prevalence Seroprevalence 2. Which study you generally conduct if you are interested in studying the risk factors of diabetes in a population in an ethically and scientifically convincing way? Case-Control Cross-sectional study Experimental study Cohort study 3. Prevalence of disease in exposed is not different than the prevalence of exposure among diseased False True 4. Sero-prevalence study is also called Cross-sectional study Cohort study Experimental study Case reports 5. Which one of...
Temporal bias can be prevented in a cross-sectional study by repeating the measurement of the outcome variable more than one time. O True O False
Which of the following is true regarding cross-sectional studies? a Cross-sectional studies can only be descriptive and cannot be used to test a hypothesis since information on the exposure and disease are collected simultaneousl b Cross-sectional studies can provide an estimate of incidence when they are conducted on a national level and are representative of current demographic groups. c Cross-sectional studies are superior to experimental studies because they are more representative of the population d None of the above statements...
1. When we conclude treatment are different than it actually is, what type of error we are committing? Type I error Type II error Type III error Type IV error 2.Generalizability is increased by increasing External validity Internal validity Randomization Sampling 3. Recall bias occurs when a. Questions asked to participants are not time limited b. Questions asked to participants are subject limited 4. Selection bias is more common in Case-control study and experimental study Case control and cross sectional...
Measurement bias occurs when the people who take part in a study are systematically different from those who do not. Group of answer choices True False Specificity is the is the proportion of disease-free people who are so identified by the screening test. Group of answer choices True False Which of the following are commonly expressed per 1000 at risk? Group of answer choices Crude birth rate Infant mortality rate Neonatal mortality rate Fetal death rate All of the above...
A different group of researchers conducted a similar cross-sectional study to examine the association between regular alcohol consumption (exposure) and liver cirrhosis (outcome) but used a different study sample. They obtained a prevalence ratio (PR) of disease of 1.60 for the association between alcohol consumption and liver cirrhosis. Which of the following is the correct interpretation of the prevalence ratio (PR)? a) The risk of liver cirrhosis among regular alcohol consumers of alcohol is 1.6 times that of non-regular alcohol...