It worked! I deleted the observations that would have been excluded by my WHERE statement using this syntax PROC SQL;
DELETE FROM rs.t1
WHERE pedq = .
;
QUIT;
PROC SQL;
DELETE FROM rs.t1
WHERE ogpa = .
;
QUIT;
PROC SQL;
DELETE FROM rs.t1
WHERE ogpa = 0
;
QUIT; After the unwanted observations were removed, I ran the mediation syntax, and it worked beautifully on solely my analytic sample. Hoorah
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