A longitudinal study is a study involves observations on a population over time. Longitudinal studies are designed to measure changes in the population.
A longitudinal study follows the same group of individuals over an extended period of time.
In survey research, a study in which the same group of individuals is interviewed at intervals over a period of time.
A study that evaluates changes in SUBJECTS over time. The number of SUBJECTS who participate in a study.
Study design in which data are collected about the same people over a period of time, to assess developmental changes that occur with age. Compare cross-sectional study. (19)
a study in which the same individuals are studied repeatedly over a specified period of time.
A study taking place over time. If individuals are followed, this is a longitudinal cohort study. If individuals are not followed, but classes (usually age classes) are restudied, this is a longitudinal cross-sectional study. The converse of a horizontal study.
A study that follows a population forward over time.
Research in which variables relating to an individual or group of individuals are assessed over a period of time, such as a study of child development drawn from research data compiled from the same group of children at different points in their lives.
repeated analysis of one or more users' behaviors or attitudes over a long period of time, typically involving software logging
a non-experimental research design in
a research method which observes a particular population over time
a study that occurs over time, so that one can say what happens to the youngsters after they leave the program, even as they grow up what the long-term impact is
A form of research often used to study, e.g., developmental issues where the group of subjects is studied over an extended period of time. Measurements are taken several times at regular intervals to look at the effect of time on the dependent variable. Matched-Subjects Designs: A class of between-subjects design in which the subjects are matched on one or more relevant characteristics. This design is used to reduce between groups variability.
Also referred to as a "cohort study" or "prospective study"; the analytic method of epidemiologic study in which subsets of a defined population can be identified who are, have been, or in the future may be exposed or not exposed, or exposed in different degrees, to a factor or factors hypothesized to influence the probability of occurrence of a given disease or other outcome. The main feature of this type of study is to observe large numbers of subjects over an extended time, with comparisons of incidence rates in groups that differ in exposure levels.
A study that follows volunteers over time.
A study conducted over a long period of time.
a study that follows patients over an extended period of time.
A study in which data are collected from the same sample at least two different times. A study designed to follow subjects through time.
A study that takes place over an extended period of time.
An investigation or study in which individuals, groups, or organizations are followed over time to track changes EHR/NSF Evaluation Handbook, Chapter Seven: GlossarySource web site
A research method that studies an individual through time, taking measurements at periodic intervals. See also case history.
Investigation in which data are collected from a number of subjects over a long period of time.
A longitudinal study is a correlational research study that involves observations of the same items over long periods of time, often many decades. Longitudinal studies are often used in psychology to study developmental trends across the life span. The reason for this is that unlike cross-sectional studies, longitudinal studies track the same people, and therefore the differences observed in those people are less likely to be the result of cultural differences across generations.