Cohort effect

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The term cohort effect is used in social science to describe shared characteristics over time among individuals who are grouped by a shared temporal experience, such as year of birth, or common life experience, such as time of exposure to radiation. [1] [2] Researchers evaluate this phenomenon using a cohort analysis. [3]

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For economists, the cohort effect is an important factor to consider in the context of resource dependency.[ citation needed ] This is because cohorts, which in organizations are often defined by entry or birth date, retain some common characteristic (size, cohesiveness, competition) that can affect the organization. [4] For example, cohort effects are critical issues in school enrollment.

The cohort effect is relevant to epidemiologists searching for patterns in illnesses.[ citation needed ] Cohort effects can sometimes be mistaken for the anticipation phenomenon, which is the earlier onset of genetic illnesses in later generations. [5] There is evidence for both a cohort effect and an anticipation effect in the increase in childhood-onset bipolar disorder. [5]

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References

  1. Atingdui, Norissa (2011), "Cohort Effect", in Goldstein, Sam; Naglieri, Jack A. (eds.), Encyclopedia of Child Behavior and Development, Boston, MA: Springer US, p. 389, doi:10.1007/978-0-387-79061-9_617, ISBN   978-0-387-79061-9 , retrieved 2023-07-27
  2. Ryder, Norman B. (1965). "The Cohort as a Concept in the Study of Social Change". American Sociological Review. 30 (6): 843–861. doi:10.2307/2090964. ISSN   0003-1224. JSTOR   2090964. PMID   5846306.
  3. "Age-Period-Cohort Effect Analysis | Columbia Public Health". Columbia University Mailman School of Public Health. 3 August 2016.
  4. Deno, Frank. "A Quantitative Examination of the Relationship between Servant Leadership and Age on Organizational Commitment in Faith-Based Organizations".
  5. 1 2 "Further Evidence of a Cohort Effect in Bipolar Disorder: More Early Onsets and Family History of Psychiatric Illness in More Recent Epochs arly Onsets and Family History of Psychiatric Illness in More Recent Epochs". Psychiatrist.com.