After a Federal court ordered school desegregation in Dallas, Texas, a study was conducted to determine factors influencing black parents' attitudes toward their children's school. Parents who said their children were in racially mixed schools were shown to be far more satisfied than those who said their children were in all black schools. Broad criteria were employed to define a mixed school. When children's schools were identified, it was evident that many parents were mistaken about whether their children actually attended mixed schools. Black parents who perceived the school to be mixed were found to be more satisfied with almost all aspects of that school, whether that school was really mixed or was all black. Perception, rather than reality, was thus concluded to be the determinant of attitudes. (Author/GC)