An error-correction procedure was implemented as part of regular class
room spelling instruction for third-grade students. The procedure incl
uded two major components: (a) error imitation and correction and (b)
repeated practice to mastery. A multigroup pretest-posttest design was
used to compare the effectiveness of the corrected-test procedure wit
h two control conditions-standard practice and practice with a reduced
number of words. Significantly higher weekly spelling test scores and
teacher ratings document the effectiveness of the experimental interv
ention over both control conditions. The present study provides eviden
ce for the generalizability of error correction and practice procedure
s to regular classroom instruction.