With numerous variables mediating the way learners interact with teacher corrective feedback (TCF), one may not comment on its efficacy before such intervening variables are adequately addressed and learners’,attendance to TCF is ensured. Among those variables, motivation is one of the most prominent ones largely affecting the degree to which students benefit from TCF. Draft-Specific Scoring (DSS), a scoring system giving learners’,a reason to notice TCF by rewarding them for the revisions they make through a flexible system of scoring, was implemented to investigate if TCF could help learners improve their use of subordinate clauses. To do so, two groups of students studying English Language Literature at the University of Tehran, consisting of 55 participants who were randomly assigned as treatment and control groups, were studied. The results of the gain analysis indicated an improvement for both groups over time in the total number and accuracy of the subordination clauses used,however, the treatment group significantly outperformed the control group. While the two groups did not differ in their use of noun clauses, the DSS group was found to outperform the non-DSS group regarding the adverb and adjective clauses. This indicates that motivation to attend to teacher feedback is of great importance if TCF is to be effective.