Integration and Enhancement of Psychometric Evidence
This chapter presents considerations for integrating seemingly discrete psychometric analyses into a cohesive, coherent whole. Developers are guided in making summary sense of the varying forms of evidence accumulated, and in reaching conclusions on whether to promote a scale as a new, ready-to-use tool, or to go “back to the drawing board.” Often, the decision is not easy. Responding to increasing calls for population-specific measures, key issues in bilingual validation and scale translation are summarized, and more detailed resources are identified. The chapter concludes with observations about “next generation” questions, including recognition of the incremental nature of evidence of scale score validity.
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