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LONGITUDINAL METHOD

LONGITUDINAL METHOD. By : Gema Flores Diana Matamoros. What is Longitudinal Method?. Is somewhat similar to a repeated measures study but in this case people are study and restudied over a period of time. The longitudinal study design is good for looking at the effects or

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LONGITUDINAL METHOD

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  1. LONGITUDINAL METHOD By: Gema Flores Diana Matamoros

  2. What is Longitudinal Method? • Is somewhat similar to a repeated measures study but in this case people are study and restudied over a period of time. • The longitudinal study design is good for looking at the effects or changes over a long period of time, usually as people age.

  3. Data is first collected at the outset of the study, and may then be gathered repeatedly throughout the length of the study. In some cases, longitudinal studies can last several decades.

  4. Example: • Apsychologist may study the effects of counseling for children of divorce as they age. The children may get counseling for one year and then the researcher measures the children on different things (e.g., coping, stress, anxiety, etc.) once a year for the next 10 years and compare them to children who did not receive the counseling, but were measured in the same way and times. This would allow the researcher to see if the counseling had any effects as the children aged compared to those who did not receive counseling.

  5. Benefits of Longitudinal Method • The benefit of this type of research is that it allows researchers to look at changes over time. Because of this, longitudinal methods are particularly useful when studying development and lifespan issues.

  6. Drawbacks of Longitudinal Research • longitudinal studies require enormous amounts of time and are often quite expensive.

  7. Participants sometimes drop out of the study, shrinking the sample size and decreasing the amount of data collected.

  8. Types of Longitudinal Methods: • Panel Study: Involves sampling a cross-section of individuals.

  9. Cohort Study: Involves selecting a group based on a specific event such as birth, geographic location or historical experience.

  10. Retrospective Study: Involves looking to the past by looking at historical information such as medical records.

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