In his 2007 study “Effects of Textual Enhancement and Topic
Familiarity on Korean EFL Students’ Reading Comprehension and
Learning of Passive Form,” Lee demonstrated that learners were better
able to correct written sentences that contained incorrect English passive forms
after exposure to texts flooded with enhanced (versus nonenhanced) passive
forms. But with enhanced forms, learners did worse on comprehension tests, which
arguably demonstrated a trade-off: More attention to forms resulted in less to
meaning. In this study, a conceptual replication of Lee’s using
eye-movement data, I assessed how English passive construction enhancement
affects English language learners’ (a) learning of the form (via pre-
and posttest gains on passive construction tests) and (b) text comprehension. In
contrast to Lee’s results, I found enhancement did not significantly
increase form correction gain scores, nor did enhancement significantly detract
from comprehension. There was no trade-off effect. Form learning and
comprehension did not correlate. By recording learners’ eye movements
while reading, I found enhancement significantly impacted learners’
noticing of the passive forms through longer gaze durations and rereading times.
Thus, enhancement in this study functioned as intuitively and originally
(Sharwood Smith, 1991, 1993) proposed;
it promoted noticing, but, in this case, without further explicit instruction,
it appeared to have done little else.