Temporal bias can be prevented in a cross-sectional study by repeating the measurement of the outcome...
Which type of bias occurs in cross-sectional studies when the goal of the study is to make inferences from the included prevalent cases in relation to disease risk? Temporal bias O Incidence-Prevalence bias O Lead-time bias O Recall bias
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...
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...
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...
Cross-sectional studies are the most basic type of descriptive study [Choose the ONE best answer]: A. True OB. False C. Undefined D. Can't tell, need more information
3) True or False? If the goal of the study is to understand populations, describe patterns, or ask research questions that are not focused on causality, the best design may be a cross-sectional or cohort study. True False 5) True or False? Case definitions are essential for any outbreak investigation no matter which study approach is used to investigate the epidemic. 6) True or False? Cross-sectional surveys are used to establish baseline data prior to the initiation of longitudinal studies....
Hypothesize a cross-sectional study that would investigate Alzheimer's within the nun's study Include person, place and time variables Identify outcome and exposures Discuss any limitations on this data set that might make it difficult to generalize to the public.
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...
2. Which of the following statements is TRUE (1 mark)? a) Selection bias can be reduced by increasing sample size. b) Loss to follow-up in a cohort study can bias findings either towards the null (reducing the magnitude of the true association) or the opposite (over-estimating the magnitude of the true association). c) Systematic error can be reduced by taking repeated measurements. d) Non-differential misclassification of exposure or outcome usually biases study findings away from the null (towards finding an...
An event-based design can be a type of repeated cross-sectional design or a type of panel design. True False