Longitudinal Meaning: Definition, Examples, and Translations
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longitudinal
[lɒŋɪˈtjuːdɪnəl ]
Definition
research study
The term 'longitudinal' refers to research that involves repeated observations of the same variables over time. This approach allows researchers to track changes and developments in subjects or phenomena, providing deeper insights into trends. Longitudinal studies are essential for understanding causality and the long-term effects of various interventions. It contrasts with cross-sectional studies, which provide a snapshot at one point in time.
Synonyms
continuous, extended, prolonged, sustained.
Examples of usage
- The longitudinal study revealed significant health improvements over ten years.
- Researchers conducted a longitudinal analysis of student performance.
- This longitudinal research helped identify patterns in childhood obesity.
Translations
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Interesting Facts
Science
- Longitudinal studies in psychology can help researchers observe how behaviors or feelings change throughout different life stages.
- In health research, longitudinal studies track the same individuals to assess the long-term effects of lifestyle changes.
- These types of studies can take years or even decades to complete, gaining insights that cross-sectional studies cannot.
Education
- Longitudinal assessments in education track student progress over time, providing valuable data for improving teaching methods.
- Some educational programs are designed as longitudinal studies, following students from kindergarten to graduation to assess outcomes.
- They enable educators to identify trends in learning and development, shaping future curriculum decisions.
Pop Culture
- Popular reality shows often utilize a longitudinal format, following participants' lives over multiple seasons to capture evolution and growth.
- Documentaries made over years, like 'American Teen,' exemplify longitudinal storytelling, revealing changes in characters over time.
- Musicians sometimes release albums over a span of decades, showcasing their personal and artistic growth in a longitudinal fashion.
Sociology
- Sociologists conduct longitudinal studies to observe the long-term effects of societal changes on family structures.
- By following the same group over years, researchers can identify patterns and influences in social behaviors.
- These studies can reveal insights about how social policies impact communities over time.
Origin of 'longitudinal'
Main points about word origin
- The word comes from the Latin 'longitudo,' meaning 'length,' combined with 'al,' which indicates a relation.
- In English, it first emerged in the 18th century, initially used in geographical contexts.
- The term has evolved to include not only geography but also research methodologies.
The word 'longitudinal' originates from the Latin word 'longitudinalis', derived from 'longitudo', which means 'length'. Initially, in the 18th century, it referred to something that is measured along the length. In the context of research, the term gained prominence in the 20th century, especially with advances in multidisciplinary studies where data collection was done over extended periods. Over time, its usage solidified within the fields of sociology, psychology, and health sciences, referring specifically to studies analyzing data and behaviors across various points in time. The importance of longitudinal studies grows as they allow for the examination of developmental trends and the effects of variables over time, making the term increasingly significant in academic literature.