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Does ETHOR7 really represent ethnic origin?

How well do the ETHOR7 classifications reflect the true ethnic origin of the LS members? To test this we must compare ETHOR7 against the gold standard of ETHNIC9 for those members present in both 1971 and 1991.

(Note: ETHNIC9 is not really a gold standard, it simply reflects what people write on their census forms. Evidence in the US has shown that the way people report their ethnicity can change over time. The addition of the 2001 census data to the LS will provide interesting evidence on the extent to which this has happened in England and Wales.)

Use the buttons below to view a cross-tabulation of ETHOR7 against ETHNIC9. In the table, ETHOR7 is reduced to its middle digit only, which specifies the ethnic group. We have called this ETHORX7 in the table. Also, ETHNIC9 has been regrouped into its main categories (i.e. subgroups of Black-Other and Other-Other respectively have been merged).

Percentages: Row Column

By viewing the column percentages in this table, you can see the proportion of people in each ETHNIC9 category that have been differently classified by ETHOR7. What does this tell us about the usefulness of ETHOR7? Try the questions below.