The J trial is notable because, after we indicated WayPoint "accept" or "reject", we were provided with both frequency and cost of collisions for the 80 OTR drivers.  These data are summarized in the table below:

By every comparison, the WayPoint-rejected drivers were more crash prone than the WayPoint-accepted drivers were.  Rejected drivers not only had more collisions (regardless of tenure/exposure), they also had costlier crashes per driver AND per year of driving.  It is especially remarkable that the median cost per crash (i.e. crash severity for those drivers who had at least one crash) for the rejected drivers was more than triple that of the accepted drivers.

Bottom line: If the drivers that WayPoint rejected were replaced with drivers that WayPoint accepted, preventable crash costs would decline from $333,687 to $204,309, a 39% reduction.

Not bad for a 4-minute, paper-and-pencil pre-employment test!