Reliability studies conducted with 32 adults employed full-time also indicate that the MAPP test is highly consistent over time. The results of this study found that occupational preferences predicted by the MAPP were substantially similar to those predicted by the Strong Vocational Interest Inventory. Occupational matches between the two tests ranged from 50 to 90 percent with a median correlation of 67 percent.Ī second validity study with a larger sample of 133 people primarily employed in technology positions was conducted to compare the MAPP career test with the Strong Vocational Interest Inventory. The first validity study, conducted with 30 subjects in 1997, yielded correlations that suggest similarity between the MAPP and the Strong Interest Inventory. However, unlike the Strong Interest Inventory, the MAPP test can be taken and read by consumers without having to engage the services of a professional. The MAPP career assessment has undergone extensive validity and reliability testing, including correlating the results to the Strong Interest Inventory. MAPP™ Test Validity & Reliability Studies