An Investigation into Psychometric Properties of Hill's Perfectionism Inventory

Research on perfectionism has evolved from an initial presentation of a unidimensional construct to the development of several independent multidimensional conceptualizations of perfectionism, this itself has developed mumerous measuring tools to measure key and essential characteristic features of perfectionsim; therefore, the research purpose is to conduct an investigation into psychometric properties of Hill’s Perfectionism Inventory. A sample of 527 university students was selected using cluster random sampling and completed the inventory. Findings revealed that Cronbach’s alpha is acceptable (α=0. 929), Factor analytic investigations using LISREL have suggested that 8 scales are extracted from the 59-item inventory; moreover, results suggested substantial evidence for scale validity amongst Iranian population. Although there are several existing measures that are commonly used to assess perfectionism, these analyses suggest that the PI compares quite favorably to these measures in terms of efficiency, clarity of interpretation, psychometric quality, and predictive power.