McConnell S, Biglan A, Severson H H
J Behav Med. 1984 Mar;7(1):115-22. doi: 10.1007/BF00845350.
Brief daily telephone calls were evaluated as a method of enhancing adolescents' compliance with self-monitoring and physiological assessments of cigarette smoking in the natural environment. Seven direct and indirect measures of compliance were devised. Results indicated that subjects receiving telephone calls complied significantly more than control subjects in providing saliva samples and recording detailed self-monitoring data.
