Spanish Validation of Hewitt's Multidimensional Perfectionism Scale-Short Form

Although the original long version of the Hewitt Multidimensional Perfectionism Scale (HMPS) has been translated and validated in a Spanish population, no study to date has examined the psychometric properties of a short version of the HMPS with a Spanish-speaking sample. For this reason, the aim of this study is to analyze the psychometric properties and factorial invariance of Cox and colleagues' short form of the HMPS in a Spanish-speaking population. A sample of 496 undergraduate and graduate students (69.4% females; M age = 19.89, SD = 2.28, range 18-25 years) was used. After removing items 1, 3, 6, 8, 9, and 12, a confirmatory factor analysis was found to support the three-factor structure proposed by Cox and colleagues: Socially Prescribed Perfectionism (SPP), Self-Oriented Perfectionism (SOP), and Other-Oriented Perfectionism (OOP). Acceptable reliability values were obtained for total HMPS-sf and its subscales. Regarding between-factor correlations of the HMPS-sf, SOP and SPP obtained the lowest correlation coefficient. SPP reported the most maladaptive correlational pattern of the three dimensions, whereas SOP displayed the less maladaptive pattern. In addition, results evidenced configural, metric, and scalar invariance. As for strict invariance, one of the three parameters did not meet the requirements. In conclusion, the Spanish version of the HMPS-sf was found to be a reliable and valid instrument. Therefore, this study offers the first short, easy-to-use tool for the evaluation of perfectionism in a Spanish population.