Visit this site for a list of the main types of reliability estimates and information on each. These notes are from the text "Research Methods Knowledge Base," authored and maintained online by William M.K. Trochim, Cornell University.

Reliability in general and sample reliability are discussed throughout this document on gathering data for research. Site maintained by a professor at Florida State University.

This document on validity and reliability is provided by the Department of Psychology at Georgetown University.

The reliability of measurement is the focus of this site. These notes are from the text "Research Methods Knowledge Base," authored and maintained online by William M.K. Trochim, Cornell University.

Charts look at different types of reliability and validity and also values for reliability coefficients. Site hosted by the Florida Center for Instructional Technology.

Online PowerPoint presentation focuses on the validity of measurement instruments and measurement reliability.

Introductory notes on reliability and validity with social science research. Site maintained by Colorado State University.

Class notes on reliability and validity are maintained by Winona State University.

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