Registered Apprenticeship Information System (RAIS)

Cohort size of person, number

Cohort size refers to the number of people that were part of a given group at some point in time. These groups include journeypersons who receive certifications in specific trades during the given calendar year.

Person refers to an individual and is the unit of analysis for most social statistics programs.

The data for this variable are reported using the following measurements:

  • Whole number
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