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All three aims were successfully attained. All subjects were able to understand the test and respond properly using the left and right arrow keys on a computer keyboard. Very few subjects indicated that the test was too fast, too difficult or too long.
This finding confirms the premise that the BLT Alertness Test is acceptable for the general working population. Since the time of the original development and study, the AlertMeter has undergone rigorous testing with new improvements that make the system more accurate, and more practical for workplace use. Predictive Safety holds 3 patents and 15 patents pending on the system.