The standardization routines for highest level of attained education

When harmonizing household surveys, LIS has to deal with all the typical national educational systems in the different member countries.

The slots in which information on educational attainment can be stored are :

 - PEDUC for general education, and/or

 - PTOCC for vocational training.


When filling these variables, the rule is that all original detail is preserved.

As such, no information is lost, but the comparability between countries suffers.

An international comparable variable is needed when for instance running regressions. Therefore, LIS decided to supply a routine that derives such a variable.

Because this new variable comes in addition to the two original ones, users now have a choice to either work with the full detail, or to use standardized categories.

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