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- Allow complete information on the subject’s exposure, including quality control of data, and experience thereafter.
- Provide a clear temporal sequence of exposure and disease.
- Give an opportunity to study multiple outcomes related to a specific exposure.
- Permit calculation of incidence rates (absolute risk) as well as relative risk.
- Methodology and results are easily understood by non-epidemiologists.
- Enable the study of relatively rare exposures.
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Is a cohort study qualitative or quantitative?
Quantitative
What is the difference between justification and significance?
advantages of the study
Advantages and dis advantages of sampling?
There are many advantages and disadvantages of sampling. These advantages include being able to try what you need before you buy.
Advantages of multistage sampling?
Advantages of multistage sampling?
What is the advantages and disadvantages of a pilot survey?
1. It permits preliminary testing of the hypotheses that leads to testing more precise hypotheses in the main study. It may lead to changing some hypotheses, dropping some, or developing new hypotheses. 2. It often provides the researcher with ideas, approaches, and clues you may not have foreseen before conducting the pilot study. Such ideas and clues increase the chances of getting clearer findings in the main study. 3. It permits a thorough check of the planned statistical and analytical procedures, giving you a chance to evaluate their usefulness for the data. You may then be able to make needed alterations in the data collecting methods, and therefore, analyze data in the main study more efficiently. 4. It can greatly reduce the number of unanticipated problems because you have an opportunity to redesign parts of your study to overcome difficulties that the pilot study reveals. 5. It may save a lot of time and money. Unfortunately, many research ideas that seem to show great promise are unproductive when actually carried out. The pilot study almost always provides enough data for the researcher to decide whether to go ahead with the main study. 6. In the pilot study, the researcher may try out a number of alternative measures and then select those that produce the clearest results for the main study.
What is a concurrent cohort study?
it is prospective cohort study
What is the difference between a panel study and a cohort study?
A panel study uses a representative sample, whereas a cohort study uses a sample with predetermined common characteristics.
What is a longitudinal cohort study?
A longitudinal cohort study involves studying a specific group of people over an extended period of time.
3 What is a major problem resulting from the lack of randomization in a cohort study?
What is major problem resulting from the lack of randomization in a cohort study
Is cohort study primary or secondary literature?
A cohort study is considered primary literature because it involves original research conducted by the authors.
Is a cohort study qualitative or quantitative?
Quantitative
In a cohort study a scientist collects health data on a group of nurses. What characteristics was used to form the cohort?
Occupation
In a cohort study, a scientists collects health data on a group of people born in 1976. What characteristic was used to form the cohort?
Age.
In a cohort study, a scientist collects health data on a group of drug abusers. What characteristic was used to form the cohort?
behavior
What are the 3 types of longitudinal studies?
The three main types of longitudinal studies are cohort studies, panel studies, and trend studies. Cohort studies follow a specific group of individuals over time, panel studies revisit the same group of individuals at multiple points, and trend studies analyze data collected from different samples at various time points.
In a cohort study a scientist collects health data on a group of drug abusers. What characteristic was used to form the cohort?
Age
What are the advantages and disadvantages of cohort studies?
AdvantagesCohort studies are the more direct evaluation study of health and disease patternsMeasures riskDisadvantagesRelatively expensiveRequire a long follow up periodSubjects may be lost during the long follow periodA large number of subjects is needed
