The construction and validation of the Prevue Assessment was completed in the United States of America, Canada, Great Britain, Singapore and Malaysia. Approximately 4,700 employed people, in a variety of occupations, participated in the validation group. They worked for companies of all sizes and in government. The people in the validation study represent a true cross-section of the international workforce, giving the Prevue Assessment multiracial, multicultural and multilinguistic validity. Content, construct and job validation studies have confirmed the reliability and validity of the Prevue Assessment.
The validity and reliability of the ICES Plus test is further confirmed by numerous construct, content, concurrent, and predictive studies undertaken by NPAL. The details of all these studies are reported in the Prevue Assessment Technical Manual.