([grade in school R is currently attending] <= 9)

COMMENT: is the grade they are attending or have attended <= 9th?

In this next section, you and I are going to spend a little time together working on some mathematics questions and problems. Most young people find them interesting and enjoy working on them. You will find some of these questions very easy and others quite hard. I don't expect you to get them all right, but I want to find out how many of them you can do. Do as many as you can, as well as you can. Take your time and do your best.

(INTERVIEWER: TAKE OUT THE PIAT MATH EASEL AND EXPLAIN
PROCEDURES TO THE RESPONDENT.)