Definición Longitudinal study
A longitudinal study is the process of the collection of data, performed recurrently over time on the same statistical unit. Longitudinal data are primarily used to examine time series and to generate forecasts based on those data.
An example of a longitudinal study is the annual measurement of a country's GDP or the daily measurement of the temperature at Mount McKinley.
Surveys will lead to longitudinal data, if the exact same people are interviewed in a panel on the exact same topic repeatedly. The opposite of longitudinal data are cross-sectional data.
Tenga en cuenta que las entradas de nuestro glosario son explicaciones simplificadas de términos estadísticos. Nuestro objetivo es hacerlo accesible para un público amplio, así que puede que algunas definiciones no cumplan los estándares científicos.