Newsletter Articles | May 31, 1989
Drug Test Lab Studies Show Opposite Results
OPEN MINDS The Behavioral Health & Social Service Industry Analyst
Industry News
Recent studies of drug-testing laboratories performance appear contradictory. Findings of a federally-funded study reported in Journal Of The American Medical Association revealed a 31% rate of false-negatives (erroneously reported as drug-free) in a blind study and a false-positive rate (erroneously reported as containing drugs) of over 1% according to a report appearing in the March, 1989 issue of Drugs In The Workplace. In an open study, where samples were clearly marked as part of . . .