This study examined the frequency of use of various types of reliability coefficients for a systematically drawn sample of 696 tests appearing in the APA-published Directory of Unpublished Experimental Mental Measures. Almost all articles included some type of reliability report for at least one test administration. Coefficient alpha was the over-whelming favorite among types of coefficients. Several measures treated almost universally in psychological-testing textbooks were rarely or never used. Problems encountered in the study included ambiguous designations of types of coefficients, reporting reliability based on a study other than the one cited, inadequate information about subscales, and simply incorrect recording of the information given in an original source.

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Although huge advances have been made in minimally invasive gynecologic surgery, high-quality evidence from well-designed clinical trials is lacking for many of the new technologies. Accurate estimates regarding the risk of occult leiomyosarcoma are also lacking. Additional research is urgently needed to address these deficiencies.

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