This study examines the effects of the computer-assisted text analysis program, WRITER'S WORKBENCH, on writing performance, levels of writing apprehension, students' writing processes and attitudes about using the computer and WORKBENCH for writing. A sample of 275 subjects enrolled in freshman composition were divided into an experimental group (N = 200) who used WORKBENCH in a mandatory computer lab component in addition to their composition course and a control group (N = 75) who received only the course, itself. Because random selection of participants was not possible, a Nonequivalent Control Group design was utilized. Holistic scoring of pre and posttest essays revealed a significant improvement in writing among both groups as a result of the treatments, but there was no significant difference in writing gains between the group using WORKBENCH and the group who did not (p = .942) . Similarly, though both groups demonstrated a small decrease in writing apprehension after instruction, there was no significant difference in the degree of decrease between the two groups (p = .201). Also, the data did not support a relationship between writing performance and apprehension. A 40 item questionnaire was given to the experimental group to determine: 1) attitudes about writing with …