| Abstract: | This article provides an introduction to the 5 instrument articles in this special section, each of which presents a psychometric evaluation of a self-administered questionnaire developed for use in addictions treatment research. An overview of measurement theory is presented, and social-psychological factors that affect reliability and validity are considered. The instruments evaluated in this issue are summarized, and the 2 common data sources for the 5 reports, the Project MATCH baseline data set and the Project MATCH Reliability Study, are described. The article concludes with a brief summary that offers recommendations regarding how psychometric investigation should be undertaken and applied to the development of self-report questionnaires in addictions research. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
