The effects of an elaborated goal on the persuasive writing of students with learning disabilities and their normally achieving peers.

Fourth- and sixth-grade students with and without learning disabilities (LD) wrote persuasive essays about controversial topics under 2 different conditions. Students in the general goal condition were asked to write a letter to persuade an audience to agree with their position. Students in the elaborated goal condition were given the same general goal plus explicit subgoals based on the elements of argumentative discourse. Sixth-grade students in the elaborated goal condition produced more persuasive essays and included a greater number of argumentative elements in their essays than did either 6th graders in the general goal condition or 4th graders in both goal conditions. In addition, students with LD wrote less persuasively than did their normally achieving peers. Implications for the study of argumentative writing are discussed.