Longitudinal data collection allows researchers to build up a more accurate and reliably ordered account of the key events and experiences in study participants’ lives. Understanding the order in which events occur is important in assessing causation.
Is a longitudinal study reliable?
These studies are considered highly valid for determining long-term changes and are unique in themselves when it comes to being able to provide useful data about these individual changes.
Why are longitudinal studies unreliable?
Longitudinal studies require enormous amounts of time and are often quite expensive. Because of this, these studies often have only a small group of subjects, which makes it difficult to apply the results to a larger population.
Why are longitudinal studies biased?
Longitudinal studies using data collected as part of usual care risk providing biased results if visit times are related to the outcome of interest. Statistical methods for mitigating this bias are available but rarely used. This lack of use could be attributed to a lack of need or to a lack of awareness of the issue.
What is a disadvantage of longitudinal research?
The main disadvantage of longitudinal studies is that it is unpredictable. Since researchers plan to study the same number of people over time, the drop out rate of participants can also be high and the previously collected data will be useless.
What are the pros and cons of a longitudinal study?
What are the pros and cons of a longitudinal study? Longitudinal studies are better to establish the correct sequence of events, identify changes over time, and provide insight into cause-and-effect relationships, but they also tend to be more expensive and time-consuming than other types of studies.
Why is longitudinal data better?
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. … Cross-sectional studies can be done more quickly than longitudinal studies.
Which is a major problem with longitudinal designs?
The main challenge of using a longitudinal design is the cost in time and resources. These studies are much more expensive and take much longer to conduct than a cross-sectional study with the same number of participants. A second issue is the impact of repeated testing.
What is one drawback of longitudinal studies quizlet?
Another huge drawback to any longitudinal study is the great amount of time it needs to collect all the data that is needed. Usually, it takes a long period of time to gather results before you can start making patterns.
What are advantages and disadvantages of cross-sectional and longitudinal designs?
Longitudinal study is conducted with the same sample over the years. Cross-sectional studies cannot pin down cause-and-effect relationship. Longitudinal study can justify cause-and-effect relationship. Multiple variables can be studied at a single point in time.
Is longitudinal research quantitative or qualitative?
Quite often, a longitudinal study is an extended case study, observing individuals over long periods, and is a purely qualitative undertaking.
What are the pros and cons of cross-sectional study?
Advantages | Disadvantages |
---|---|
Used to prove or disprove assumptions | Not used to analyze behavior |
Cheap and quick | Useless for determining cause and effect |
Multiple variables at the time of a data snapshot | Snapshot timing may not be representative |
How does a longitudinal study benefit the child?
Cohort and longitudinal studies have unique potential to improve understanding of the dynamic processes that shape child development, including trends and trajectories. … Longitudinal studies bring a life-course perspective to analysis, and can contribute to understanding the drivers and determinants of child outcomes.
What are the advantages of a longitudinal research over the cross sectional research?
The key advantage to longitudinal studies is the ability to show the patterns of a variable over time. This is one powerful way in which we come to learn about cause-and-effect relationships.
What are the benefits of a longitudinal cohort study?
- The ability to identify and relate events to particular exposures, and to further define these exposures with regards to presence, timing and chronicity;
- Establishing sequence of events;
- Following change over time in particular individuals within the cohort;
How is a longitudinal study used as an assessment tool?
A longitudinal study is a research conducted over an extended period of time. It is mostly used in medical research and other areas like psychology or sociology. When using this method, a longitudinal survey can pay off with actionable insights when you have the time to engage in a long-term research project.
What is most likely the biggest problem with longitudinal research?
The biggest problem in longitudinal research comes from changing historical context. Seeks to understand how and why people of all ages and circumstances change or remain the same over time.
How do longitudinal studies differ from cross sectional studies?
Longitudinal studies differ from one-off, or cross-sectional, studies. The main difference is that cross-sectional studies interview a fresh sample of people each time they are carried out, whereas longitudinal studies follow the same sample of people over time.
What are the advantages and disadvantages of longitudinal research quizlet?
What are the disadvantages? A major advantage of longitudinal research is that it can establish a sequence of events, allowing one to track true changes over development (not just differences). There are several disadvantages to longitudinal research. One is that researchers can experience attrition by participants.
Who can successfully conduct research?
25) Who can successfully conduct Research? Explanation: Anyone who has studied the research methodology can undergo the research.
Do longitudinal studies have independent and dependent variables?
Usually, there is some independent variable (often called a within-subject factor) that changes with each measurement. And in longitudinal data, the dependent variable is measured at several time points for each subject, often over a relatively long period of time.
Are longitudinal studies scientific?
It is often a type of observational study, although it can also be structured as longitudinal randomized experiment. … Longitudinal studies allow social scientists to distinguish short from long-term phenomena, such as poverty.
Are cross-sectional studies reliable?
Reliability studies
Such studies are inherently also cross-sectional in nature, even if they form part of larger cohort studies 29, and the only study design mentioned in a given paper may be the longitudinal design 29.
What is the limitation of cross-sectional study?
The primary limitation of cross-sectional studies is that the temporal link between the outcome and the exposure cannot be determined because both are examined at the same time.
What is the problem with cross-sectional research?
The weaknesses of cross-sectional studies include the inability to assess incidence, to study rare diseases, and to make a causal inference. Unlike studies starting from a series of patients, cross-sectional studies often need to select a sample of subjects from a large and heterogeneous study population.