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Despite its flexibility and power, however, the test has three main shortcomings: (i) it discards important information regarding the spatial and temporal scales at which the detected interaction takes place; (ii) the results of the test have not been visualized; and (iii) recent research demonstrates the test to be susceptible to population shift bias. This study presents enhancements to the Jacquez <jats:italic>k<\/jats:italic> nearest neighbors test with the goal of addressing each of these three shortcomings and of improving the utility of the test. Data on Burkitt's lymphoma cases in Uganda between 1961 and 1975 are used to illustrate the modifications and enhanced visual output of the test. Output from the enhanced test is compared with that provided by alternative tests of space\u2013time interaction. Results show the enhancements presented in this study transform the Jacquez test into a complete, descriptive, and informative metric that can be used as a stand\u2010alone measure of global space\u2013time interaction. Copyright \u00a9 2012 John Wiley &amp; Sons, Ltd.<\/jats:p>","DOI":"10.1002\/sim.5348","type":"journal-article","created":{"date-parts":[[2012,4,11]],"date-time":"2012-04-11T16:06:22Z","timestamp":1334160382000},"page":"2318-2334","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Enhancing the Jacquez <i>k<\/i> nearest neighbor test for space\u2013time interaction"],"prefix":"10.1002","volume":"31","author":[{"given":"Nicholas","family":"Malizia","sequence":"first","affiliation":[{"name":"GeoDa Center for Geospatial Analysis and Computation School of Geographical Sciences and Urban Planning Arizona State University 975 S. 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