APS

Slaney and his colleagues (1996) created the Almost Perfect Scale-Revised (APS-R), which contains three variables: High Standards, Order, and Discrepancy. It distinguishes between adaptive and maladaptive perfectionism. The APS-R is often used to categorize people into adaptive and maladaptive perfectionists. Both adaptive and maladaptive perfectionists rate highly in Standards and Order, but maladaptive perfectionists also rate highly in Discrepancy. Two other forms of the APS-R measure perfectionism directed towards intimate partners (Dyadic Almost Perfect Scale; DAPS) and perceived perfectionism from one's family (Family Almost Perfect Scale; FAPS). From this website, you may download these three scales and the various versions translated into different languages. You will also find a list of studies that have used these scales to measure perfectionism.