The psychometric properties of the Frost, Marten, Lahart, and Rosenblate Multidimensional Perfectionism Scale (1990) are investigated to determine its usefulness as a measurement of perfectionism with Australian secondary school girls and to find empirical support for the existence of both healthy and unhealthy types of perfectionist students. Participants were 409 female mixed-ability students from Years 7 and 10 in two private secondary schools in Sydney, Australia. Factor analyses yielded four rather than the six factors previously theorized. Cluster analysis indicated a distinct typology of healthy perfectionists, unhealthy perfectionists, and nonperfectionists. Healthy perfectionists were characterized by higher levels on Organization, whereas unhealthy perfectionists scored higher on the Parental Expectations & Criticism and Concern Over Mistakes & Doubts dimensions of perfectionism. Both types of perfectionists scored high on Personal Standards. (Contains 3 tables and 3 figures.)