Questionnaires were mailed to parents of the 55 sixth graders in the 1988-89 year-round school pilot program in Conroe Independent School District in Texas and to those of sixth graders on the district's traditional calendar to determine parent perceptions and satisfaction regarding the year-round school calendar. The document also reviews the historical background of year-round schooling, summarizes 10 studies on parent attitudes toward year-round schooling, and describes the methodology for the current study. Parent perceptions of the effect of year-round and traditional school calendars are grouped into four categories: (1) family schedules, school-related activities, and student attendance; (2) student grades, achievement, homework, discipline, and enjoyment of school; (3) parent-school communication; and (4) student learning retention. Next, the "grades" parents assigned to their children's schools are reviewed along with parents' choices for future programs and their reasons for choosing the year-round school. A final section summarizes study findings and offers recommendations for repetition of the study and for further research. Included are 25 tables and 12 graphs as well as the Spanish and English versions of the letter of transmittal and school calendar parent survey. (35 references) (CLA)