To be most useful, clinical trials of cancer pain treatments should use pain measures that are
both reliable and valid. A great variety of measures are now available that may be used to
assess cancer pain. However, there are not yet any clear guidelines for selecting one or
more measures over the others. The purpose of this article is to summarize the evidence
concerning the validity and reliability of cancer pain measures. One hundred sixty-four
articles were identified that provided psychometric data of pain measures among patients�…