Abstract
N reviewing manuscripts about instrument development for nursing research journals, I have found that many investigators submit fragmented reports of this ac- tivity. Often my response is, "The instrument appears promising, but a more systematic report of its reliabil- ity and validity is needed before it is ready for publication." Why aren't these articles publishable at this stage? The answer lies in assuming the perspective of the reader. instrument might be spread out across 8 to 10 articles. This method of reporting would lead to needless rep- etition of background information; and, researchers would have difficul- ty locating all the sources of informa- tion to evaluate the instrument. Similarly, unreliable instruments are not worth further investigation of their validity because reliability is a prerequisite for validity. A basic core of reliability and validity is needed to evaluate any instrument. This article outlines material that should be included in reports of instrument development to guide re- searchers in planning data collection efforts so that a report about the instrument is unified and complete. What constitutes minimal reliabili- ty and validity for evaluating an instrument? Opinions vary, of course,

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