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PI Hiring Science


Increase your odds of making a brilliant hire.

PI Science
Predictive Index Science, PI Assessment

Field testing and form development.

Adjectives for our form were field-tested with results from more than 136,000 people and went through content review, psychometric review, and fairness review. The assessment was then given to a global norm group of more than 10,000 people. Norm tables and scoring models were updated and verified before finalizing the form and sending it through a multilevel translation process and regional review.

PI Science

Verifying criterion validity.

PI criterion validity Studies, Predictive Index Assessment

PI has hundreds of individual criterion validity studies, as well as some meta-analytic criterion validity studies, so a new meta-analysis was conducted with the new form of the assessment to demonstrate its relevance to job performance. More than 1,200 respondents in 26 job roles from 14 companies participated in the new criterion validity study. Job roles were grouped based on similarities (e.g., management roles), and meta-analyses were run to estimate corrected correlations between factor scores and managers’ ratings of employees’ job performance, compliance, initiative, and cooperation.

Let's take the bias out of your hiring process.

Driven by professional guidelines.

Our assessments are developed following recognized psychological standards and guidelines, including the American Psychological Association (APA), the Society for Industrial and Organizational Psychology (SIOP), and the International Test Commission (ITC).


These guidelines provide a framework for test construction and the proper use of assessments. The Predictive Index provides well-researched, valid, and reliable assessments that can help support clients’ legal compliance with the EEOC and the Uniform Guidelines on Employee Selection Procedures. In addition, the Predictive Index, to our knowledge, has never been successfully challenged in court, and we offer validation services for our clients that are necessary to establish the job-relatedness of our assessments.

Predictive Index Science

Over 60 years and more than 30 million assessments.

With more than sixty years of science under the belt as an assessment provider, we don't rest on our laurels and bask in past accomplishments. The Predictive Index organization forges ahead and puts its dedicated industrial-organizational psychologists, psychometricians, and statistics gurus to work to ensure our clients benefit from the latest research.

PI Assessments, Predictive Index,

Add scientific rigor to your hiring process.

Confirming construct validity.

The field test data was used to conduct a content validity analysis, reliability studies, differential item functioning analyses, a check of factor unidimensionality using exploratory factor analysis, and a check of the entire factor model with a confirmatory factor analysis, which also demonstrated improved validity loadings over the previous version of the assessment. A convergent validity analysis was also conducted to show that scores correlated as expected with the previous version of the assessment, as well as with a variety of other personality scales.

PI Validity Analysis, Predictive Index Science, PI Assessment
PI Science


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