Longitudinal studies

 

longitudinal case study

In a longitudinal study subjects are followed over time with continuous or repeated monitoring of risk factors or health outcomes, or both. Such investigations vary enormously in their size and complexity. At one extreme a large population may be studied over decades. Sep 19,  · Embarking on a longitudinal study. Conducting longitudinal research is demanding in that it requires an appropriate infrastructure that is sufficiently robust to withstand the test of time, for the actual duration of the study. coupled with an ability to continue follow-up remotely in case of displacement, are key. Start studying Case Studies and Longitudinal Studies. Learn vocabulary, terms, and more with flashcards, games, and other study tools.


What is a Longitudinal Study?- Definition with Examples


The column covered over 35 common research terms used in the health and social sciences. The complete collection of defined terms is available online or in a guide longitudinal case study can be downloaded from the website.

Study design depends greatly on the nature of the research question. In other words, knowing what kind of information the study should collect is a first step in determining how the study will be carried out also known as the methodology.

Do we want to compare cholesterol levels among longitudinal case study populations of walkers and non-walkers at the same point in time? Or, do we want to measure cholesterol levels in a single population of daily walkers over an extended period of time? The first approach is typical of a cross-sectional study, longitudinal case study.

The second requires a longitudinal study. To make our choice, we need to know longitudinal case study about the benefits and purpose of each study type, longitudinal case study. Both the cross-sectional and the longitudinal studies are observational studies. This means that researchers record information about their subjects without manipulating the study environment. In our study, we would simply measure the cholesterol levels of daily walkers and non-walkers along with any other characteristics that might be of interest to us.

We would not influence non-walkers to take up that activity, or advise daily walkers to modify their behaviour, longitudinal case study. The defining feature of a cross-sectional study is that it can compare different population groups at a single point in time. Think of it in terms of taking a snapshot, longitudinal case study. Findings are drawn from whatever fits into the frame.

To return to our example, we might choose to measure cholesterol levels in daily walkers across two age groups, over 40 and under 40, and compare these to cholesterol levels among non-walkers in the same age groups. We might even create subgroups for gender. However, longitudinal case study would not consider past or future cholesterol levels, for these would fall outside the frame.

We would look only at cholesterol levels at one point in time. The benefit of a cross-sectional study design is that it allows researchers to compare many different variables at the same time. We could, for example, look at age, gender, income and educational level in relation to walking and cholesterol levels, longitudinal case study, with little or no additional cost. However, cross-sectional studies may not provide definite information about cause-and-effect relationships.

This is because such studies offer a snapshot of a single moment in time; they do not consider what happens before or after the snapshot is taken. A longitudinal study, like a cross-sectional one, is observational. So, once again, researchers do not interfere with their subjects. However, in a longitudinal study, longitudinal case study, researchers conduct several observations of the same subjects over a period of time, sometimes lasting many years. The benefit of a longitudinal study is that researchers are able to detect developments or changes in the characteristics of the target population at both the group and the individual level.

The key here is that longitudinal studies extend beyond a single moment in time. As a result, they can establish sequences longitudinal case study events.

To return to our example, we might choose to look at the change in cholesterol levels among women over 40 who walk daily for a period of 20 years. The longitudinal study design would account for cholesterol levels at the onset of a walking regime and as the walking behaviour continued over time. Therefore, a longitudinal study is more likely to suggest cause-and-effect relationships than a cross-sectional study by virtue of its scope. In general, the research should drive the design.

But sometimes, longitudinal case study, the progression of the research helps determine which design is most appropriate. Cross-sectional studies can be done more quickly than longitudinal studies. Then they would set up a longitudinal study to study cause and effect. What researchers mean by Cross-sectional vs. Published: August Cross-sectional study Both the cross-sectional and the longitudinal studies are observational studies.

Longitudinal study A longitudinal study, like a cross-sectional one, is observational.

 

Cross-sectional vs. longitudinal studies | Institute for Work & Health

 

longitudinal case study

 

Sep 19,  · Embarking on a longitudinal study. Conducting longitudinal research is demanding in that it requires an appropriate infrastructure that is sufficiently robust to withstand the test of time, for the actual duration of the study. coupled with an ability to continue follow-up remotely in case of displacement, are key. Longitudinal study is an observational study that employs continuous or repeated measures to follow particular individuals over prolonged period of time often years or decades. Longitudinal study collects data that is either qualitative or quantitative in nature. In longitudinal study a survey creator is not interfering with survey respondents. Start studying Case Studies and Longitudinal Studies. Learn vocabulary, terms, and more with flashcards, games, and other study tools.