Friday, November 24, 2006

SLID 2000 Immigrant Variable

Question

In the 2000 Survey of Labour and Income Dynamics there is a variable "immst15" (immigrant flag). Marginals are as follows:

1 yes 3,641
2 no 11,608
7 don't know 42,192

We're assuming that the "don't know" category should actually be "not applicable" and also that it refers to persons born in Canada. Is that a valid assumption?

Answer

Immigration status is available only for persons living in urban size of 500,000 and higher all other individuals are set to don't know for confidentiality reasons.

Follow up

Is there not some way that another code could be used that could be specifically for "confidentiality protection"? A code of "don't know" should be reserved for persons who indicate that as their response. This undermines confidence in coding.

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