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In 1999 the army of country Z started to collect data from all their recruits. As part of the process, they conducted a full physical examination in which audition was measured and reported as normal hearing, low hearing loss, and severe hearing loss. Unfortunately, 5 years later country Z went into a war with country Y. In 2018 a researcher from University U decided to conduct a study in which she investigated the association between hearing loss and suffering a war injury. What type of study design is being illustrated in this example

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michell96

The type of study carried out by the researcher is a retrospective cohort study.

Studies are classified into different types depending on their characteristics and focus. The most common types include:

  • Case studies.
  • Correlational studies.
  • Cohort studies.
  • Longitudinal studies.
  • Retrospective studies.
  • Experimental studies.

The study described that aimed at showing the link between hearing loss and war injuries. This can be classified as:

  • Retrospective: This type of study includes subjects that already have a condition and whose data has already been recorded. This occurs in this study because there is data about the subjects before the war.

  • Cohort study: This type of study focuses on studying an issue over time. This occurs in this study because the subjects have been studied for almost 20 years.

Learn more in: https://brainly.com/question/12902386

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