This study used conventional self-efficacy measures as well as predictions of performance to examine the spelling and writing efficacy beliefs of early adolescents with and without learning disabilities (LD). In addition, the study examined two types of global efficacy--self-efficacy for self-regulated learning and general self-efficacy. The students with LD over-estimated their spelling performance by 52% and their writing performance by 19%, whereas the non-LD students were generally accurate in their performance estimates. Students' performance predictions and self-efficacy ratings were strong predictors of a composite writing performance, but the self-efficacy for self-regulated learning and general self-efficacy scores did not predict writing performance. The article concludes with a discussion of recommendations to improve the calibration and academic functioning of adolescents with learning disabilities.