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In the article, the author discusses the assessment of evidential value in sex research. Also cited are the disadvantages of using single-study papers in research like they maximize the danger of false positives and they undermine the critical test of theoretical and conceptual patterns, as well as the dangers of false positive psychology in psychological science.

Abstract The goal of this paper is to provide researchers who are not experts in psychometric theory with a concise guide to instrument selection, development and evaluation. Issues of context factors related to the setting or population in which an instrument will be used and psychometrics the functioning of an instrument within a given context are reviewed and discussed. Finally, four categories or types of instruments, and the psychometric analyses that are necessary for establishing the reliability and validity of each type, are described. [ABSTRACT FROM AUTHOR]