This note suggests a solution to the problem of achieving randomization in experimental
settings where units deemed eligible for treatment "trickle in, " that is, appear at any time.
The solution maximizes assurance of true random assignment and minimizes costs
in administration. It also permits replication of the experiment in order to test for time-
dependent effects.
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References
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Cook, T. and D.T. Campbell (1976) "The design and conduct of quasi-experiments and true experiments in field settings," pp. 223-326 in M. D. Dunnette (ed.) Handbook of Industrial and Organizational Psychology.Chicago: Rand-McNally.
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Kaufman, I.R. (1974) "The pre-argument conference: an appellate procedural reform."Columbia Law Rev.74 (October): 1094-1103.
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RIECKEN, H. W. and R. F. BORUCH [eds.] (1974) Social Experimentation: A Method for Planning and Evaluating Social Intervention.New York: Academic Press.
