631. See Q. 630, if there is at least one "Yes" circled, ask: Which is the largest source among them?
[Question 631 is asked of persons age 60 or older who received money from any source listed, as per question 630.]
Question 631: Source of largest income
If the answer to Q 630 is that the respondent has income from several sources, more than one "Yes" code is circled, ask the respondent which source provides the largest income. Write the appropriate code from the "Yes" column of Q 630 in the box provided for Q 631 in accordance with the respondent's answer.
[p. 123]
For example, for Q 630 codes 3 and 5 are circled in the "Yes" column, and the respondent says that the largest source of income is from interest on deposits; then write code 5 in the box provided for Q 631.