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THE MARKED ITEM TECHNIQUE: A PRACTICAL PROCEDURE FOR UTTER CONTROLsp 1
Author(s) -
Hayes Steven C.,
Johnson V. Scott,
Cone John D.
Publication year - 1975
Publication title -
journal of applied behavior analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 76
eISSN - 1938-3703
pISSN - 0021-8855
DOI - 10.1901/jaba.1975.8-381
Subject(s) - baseline (sea) , litter , multiple baseline design , control (management) , psychology , applied psychology , computer science , waste management , psychiatry , artificial intelligence , engineering , law , political science , intervention (counseling)
Unobtrusively marked items of litter were placed among existing trash on the grounds of a federal youth correctional facility. Inmates voluntarily collected trash and deposited it at a central location, where they were given money or special privileges for each piece of marked litter found. A multiple‐baseline design with litter counts in three areas revealed successive reductions of 55%, 88%, and 71% after 17, 22, and 36 days of baseline, respectively. A fourth area served as a baseline‐only control, and revealed no systematic changes. Advantages of the procedure over previously devised techniques were discussed and applications in other areas of pollution control suggested.