What are longitudinal data?
Longitudinal data is the result of a long -term observation type called a longitudinal study. These studies focus on a selected group of people or processes and watch different factors change over time. These studies are multidimensional, which means that they focus more on many different aspects of the subject than focus on one particular area. Longitudinal data are used to find long -term trends in human life or in an ongoing process that could not be seen in a one -off study.
Defining factors for longitudinal data is time and complexity. In order to be truly longitudinal, the study must examine the factor repeatedly for a long time to see the progression in this factor. During this time, the subject repeatedly answers questions with statistical data and unofficial information.
This time frame varies depending on the type of study. If a study on the effects of the second year of a university on women Zameric State Ohio, then this speciesThe group must normally supply data for one year. If the study concerns the effects of poverty on the work habits of children, then the children must supply data from when they are very young until they are sufficiently old to have their professions. This study would probably continue from about 5 to 30 to 30 years and maybe even longer.
Another factor, complexity, is what allows people to study longitudinal data to select trends. Information provided by test entities includes aspects that seem to have no impact on the tested areas. This allows scientists to find environmental and social trends that affect seemingly unrelated behavior. It also allows them to find something called a false connection. These are points that seem to be related, but closer examinations show that they are simply two factors affected by a third.
Tstudia Hes are used in many areas of anthropologyAnd sociology, but they are also used by other fields. Economics uses longitudinal data to find trends in markets. These trends tend to repeat if there are enough time. With a sufficient amount of information, the investor can currently find out trends that mimic the complex trends that have occurred in the past, giving him a better understanding of how to invest.
manufacturing companies use longitudinal data to find ways to improve their products and increase the life of the equipment. By selecting trends, they are able to separate one -off problems and circumstances from recurring incidents. This allows them to concentrate their energy and money more efficiently.