Table of Contents
- 1 What do you call a study over a long period of time?
- 2 What are the three types of longitudinal studies?
- 3 What is most likely the biggest problem with longitudinal research?
- 4 What is an example of cross sectional study?
- 5 What qualifies as a longitudinal study?
- 6 How is the number of participants in a study calculated?
- 7 Which is the best definition of ClinicalTrials.gov?
What do you call a study over a long period of time?
A longitudinal study is a type of correlational research study that involves looking at variables over an extended period of time. This research can take place over a period of weeks, months, or even years. In some cases, longitudinal studies can last several decades.
What is longitudinal and cross-sectional study?
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 three types of longitudinal studies?
There are a range of different types of longitudinal studies: cohort studies, panel studies, record linkage studies. These studies may be either prospective or retrospective in nature.
What is an example of a longitudinal research study?
For example, a five-year study of children learning to read would be a cohort longitudinal study. Researchers might compare environmental and other factors in the children and measure outcomes over time. Some longitudinal studies are retrospective in nature; these examine data and evidence after the fact.
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. a time when a certain type of development is most likely, although it may still happen later.
Can a study be both cross-sectional and longitudinal?
The simplest longitudinal descriptive study consists of two repeated cross-sectional studies on the same population or samples, looking for the same measurements. Yes – repeated cross-sectional analysis can be longitudinal as you are repeatedly measuring something.
What is an example of cross sectional study?
A cross-sectional study involves looking at data from a population at one specific point in time. For example, researchers studying developmental psychology might select groups of people who are different ages but investigate them at one point in time.
What are the pros and cons of using longitudinal studies?
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.
What qualifies as a longitudinal study?
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, researchers conduct several observations of the same subjects over a period of time, sometimes lasting many years.
What does it mean when an observational study is retrospective?
A cross-sectional study is limited in that it only gives information at a specific point in time or over a very short period of time, and might not contain valuable information that occurs outside of that point in time. What does it mean when an observational study is retrospective?
How is the number of participants in a study calculated?
Definition: Number of participants (and units, if applicable) that did not complete the study or period. This is calculated automatically by subtracting Completed from Started. Definition: Any specific events or time points in the study when the numbers of participants (and units, if applicable) are reported.
Which is an observational study or a controlled experiment?
Indicate whether the study is an observational study or a controlled experiment. A researcher was interested in the effects of exercise on academic performance in elementary school children. She went to the recess area of an elementary school and identified some students who were exercising vigorously and some who were not.
Which is the best definition of ClinicalTrials.gov?
Definition: If assignment is based on a unit other than participants, a description of the unit of assignment (for example, eyes, lesions, implants). Limit: 40 characters. Definition: Discrete stages of a clinical study during which numbers of participants at specific significant events or points of time are reported.