Homework Answers
Answer:
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 also be useful to study many exposure and outcome relationship same time to generate new hypotheses
It can be useful for public health planning as the prevalence of disease can be obtained.
Reason:
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Select the advantages of cross-sectional studies compared to other types of observational studies. Choose all that...
Choose the study design that best matches each statement described below. The study design may be...
Choose the study design that best matches each statement described below. The study design may be used more than once or none at all. (24 points) Statement Study Design ____ Blinding or masking is used to control potential bias. Case-Control ____ Observational epidemiological studies, this design is cheaper and faster to conduct because of the usage of already existing data. Cross-sectional ____ Control groups can receive the current “standard” treatment or a placebo. Ecological ____ Data on exposure and outcome...
Which type of bias occurs in cross-sectional studies when the goal of the study is to...
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 yo...
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...
study must be valid before its results can be generalized: 6 True or false 7. Experimental...
study must be valid before its results can be generalized: 6 True or false 7. Experimental studies always have less confounding than observational studies: True or false 8. Lead time is the amount of time that the disease diagnosis is advanced by screening True or false Special cohort studies are the most sensible design for examining many exposures in relation to a single disease. 9. True or false I 10. A causal relationship between an exposure and a disease cannot...
Pad 2:57 PM * 76% D Documents D e 5 Blank 2 A + le ....
Pad 2:57 PM * 76% D Documents D e 5 Blank 2 A + le . 1. Time order is an essential attribute of a cause. True or false 2. If effect measure modification is present using a ratio measure of comparison, then it will also be present using a difference measure: True or false 3. The predictive value positive is more influenced by the specificity than the sensitivity of the screening test: True or false 4. Masking is one...
The following question lists examples of observational studies. Select all those that describe a cross-sectional study...
The following question lists examples of observational studies. Select all those that describe a cross-sectional study design? A.Survey of smokeless tobacco use among ninth-graders in four school districts. B.Data from the Behavioral Risk Factor Survey were used in a secondary data analysis to examine the effect of income inequality and race on preventive health practices. C.A study examined the effect of hormone replacement therapy on cancer; using a cancer registry in California identified cancer cases. Controls were selected from a...
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 co...
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....
QUESTION 22 Which of the following observational designs is used for hypothesis testing? A. Prevalence studies...
QUESTION 22 Which of the following observational designs is used for hypothesis testing? A. Prevalence studies B. Cohort studies C. Counts D. Case series E. Cross-sectional studies 2 points QUESTION 23 Aksoy found which of the following solvents to be associated with leukemia? A. Formaldehyde B. Toluene C. MEK D. Benzene E. Vinyl chloride 2 points QUESTION 24 During the early 21st century, the CDC reported that increased risk of developing obliterative bronchiolitis was associated with inhalation of:...
Select one classic developmental research design, such as the cross sectional design, or the longitudinal design,...
Select one classic developmental research design, such as the cross sectional design, or the longitudinal design, or the sequential design, and describe five components of a fictitious research project in which the fictitious person, who is in the age range of emerging adulthood to late adulthood, is participating. Samples of Good Work : Betty, age 70, participated in a cross sectional research study at the university near her home. The researchers were interested in discovering if there were differences in...
Match the type of epidemiology/study with the example This type of study is the strongest at...
Match the type of epidemiology/study with the example This type of study is the strongest at proving or disproving association and allows the researcher to control exposure to cases and controls. Examples of this type of a study include BRFSS, NHANES, PRAMS. This is (or these are) not a study but a form of epidemiology that includes analyzing rates, proportions, and ratios. This type of study is (or these types of studies are) most often used with testing a null...
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
study must be valid before its results can be generalized: 6 True or false 7. Experimental studies always have less confounding than observational studies: True or false 8. Lead time is the amount of time that the disease diagnosis is advanced by screening True or false Special cohort studies are the most sensible design for examining many exposures in relation to a single disease. 9. True or false I 10. A causal relationship between an exposure and a disease cannot...
Pad 2:57 PM * 76% D Documents D e 5 Blank 2 A + le . 1. Time order is an essential attribute of a cause. True or false 2. If effect measure modification is present using a ratio measure of comparison, then it will also be present using a difference measure: True or false 3. The predictive value positive is more influenced by the specificity than the sensitivity of the screening test: True or false 4. Masking is one...
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[OH−] = 1.9×10−7 M
[OH−] = 1.6×10−8 M
[OH−] = 7.2×10−11...
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