The SIGMA Performance Index - Sales (SPI-S) is a comprehensive assessment that combines an aptitude measure (Form A of the Personnel Assessment Form (PAF) ) with the power of the SIGMA Survey for Sales Professionals (3SP). It measures verbal and quantitative skills along with 28 critical dimensions of expected sales performance, with a focus on "red flags" that could impede success.
The detailed SPI-S report contains both profiles and narrative descriptions. This complementary information describes an individual's aptitude, as well as expected level of performance on the skills and personal characteristics critical for success in sales. Every statement in the report is supported by statistically significant correlations between personality and job performance.