Considers the general classes of measurement error effects recognized by contemporary reliability theory, the consequences of these effects for some descriptive and inferential statistics, and the traditional methodologies used to assess the errors in survey data. Traditional reliability estimation strategies rest on stringent assumptions. This report treats extensions of basic reliability designs to test or correct for violations of these assumptions, including the three-trial model to estimate the effects of true change; variation in the length of time to reinterview to assess test-retest conditioning; multiple trait and multiple item, multiple trial strategies to assess method or condition effects; criterion reliability to estimate net bias; and the degree of covariance between error and the true attribute. 72 pp. Bibliog.
This report is part of the RAND Corporation Report series. The report was a product of the RAND Corporation from 1948 to 1993 that represented the principal publication documenting and transmitting RAND's major research findings and final research.
Our mission to help improve policy and decisionmaking through research and analysis is enabled through our core values of quality and objectivity and our unwavering commitment to the highest level of integrity and ethical behavior. To help ensure our research and analysis are rigorous, objective, and nonpartisan, we subject our research publications to a robust and exacting quality-assurance process; avoid both the appearance and reality of financial and other conflicts of interest through staff training, project screening, and a policy of mandatory disclosure; and pursue transparency in our research engagements through our commitment to the open publication of our research findings and recommendations, disclosure of the source of funding of published research, and policies to ensure intellectual independence. For more information, visit www.rand.org/about/principles.
The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.