CONCLUSION AND RECOMMENDATION

• The most powerful methodology for evaluating the effectiveness of workplace alcohol and other drug-intervention programs is the randomized field experiment. The implementation of new work site alcohol and other drug-intervention programs or significant changes in existing programs provide propitious occasions for experimental assessment.

Recommendation: To enhance scientific knowledge, organizations instituting new work-site alcohol and other drug intervention programs should proceed experimentally if possible. Funding agencies should make field experiments a priority, and should consider providing start-up aid to private companies that are willing to institute programs experimentally and subject them to independent evaluation.

REFERENCES

Dwyer, J.H. 1983 Statistical models. New York: Oxford University. 1993 Estimating Statistical Power in the "Deviation From Secular Trend" Design. NIDA Research Monograph (in press).


Rouse J.J., N.J. Kozel, and L. G. Richards, eds. 1985 Self-Report Methods of Estimating Drug Use: Meeting Current Challenges to Validity. NIDA Research Monograph No. 57. Rockville, Md.: National Institute on Drug Abuse.



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