Responses of first-grade students, parents, and teachers in elementary schools in one school district to the "Writing to Read" (WTR) program were assessed for a version of the program implemented in mid-sized suburban schools. The WTR program is an IBM computer-based instructional system designed to develop the writing and reading skills of kindergarten and first-grade students. The study also compared the results of a standardized test, the Comprehensive Test of Basic Skills (CTBS), for reading and language between WTR students and non-WTR students. The CTBS is routinely administered to second graders in the subject school district. Three of the nine elementary schools in the district were involved in the 1986-87 and 1987-88 WTR program, and two other schools were added during the 1988-89 school year. Data for 548 students (264 males and 284 females) in 1988-89 are provided. In addition to CTBS data, results were obtained from Competency Based Writing Samples, rated by teachers based on critical skills specifications. Results indicate that in the areas of word attack, vocabulary, reading comprehension, and spelling, WTR students outperformed non-WTR students. Further examination indicated differences in achievement based on sex for WTR as well as non-WTR students. Five data tables are included. (TJH)