Guidelines for Clinical Research on Acupuncture
(1995; 68 pages)
Table of Contents
View the documentForeword
Open this folder and view contents1. Introduction
Close this folder2. Glossary
View the documentTerms relating to evaluation methodology
View the documentTerms relating specifically to acupuncture studies
Open this folder and view contents3. Goals and objectives of the guidelines
Open this folder and view contents4. General considerations
Open this folder and view contents5. Research methodology
View the document6. Using the guidelines
Open this folder and view contentsAnnexes
View the documentBibliography
View the documentSelected WHO publications of related interest
View the documentBack cover
 

Terms relating to evaluation methodology

1. Validity - Validity is the degree to which the result of measurement corresponds with the true state of the phenomenon to be measured. There are two general kinds of validity:

• internal validity, the degree to which the results of an observation are correct for the patients to be studied; and

• external validity, the degree to which the results of an observation hold true in other settings. Generalizability is the other word for external validity.

2. Reliability - Reliability is the extent to which repeated measurements of a relatively stable phenomenon fall closely together. Reproducibility and precision are other words for this property.

3. Statistical significance (P-value) - A value associated with an observed test statistic that indicates the probability that a value is as extreme or more extreme than the one observed will arise by chance alone in repeated replications of a study.

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