{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T16:49:17Z","timestamp":1791218957132,"version":"4.1.0"},"reference-count":0,"publisher":"Oxford University Press (OUP)","issue":"3","license":[{"start":{"date-parts":[[1997,9,1]],"date-time":"1997-09-01T00:00:00Z","timestamp":873072000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1997,9,1]]},"abstract":"<jats:title>Summary<\/jats:title>\n               <jats:p>Likelihood ratio tests for fixed model terms are proposed for the analysis of linear mixed models when using residual maximum likelihood estimation. Bartlett-type adjustments, using an approximate decomposition of the data, are developed for the test statistics. A simulation study is used to compare properties of the test statistics proposed, with or without adjustment, with a Wald test. A proposed test statistic constructed by dropping fixed terms from the full fixed model is shown to give a better approximation to the asymptotic \u03c72-distribution than the Wald test for small data sets. Bartlett adjustment is shown to improve the \u03c72-approximation for the proposed tests substantially.<\/jats:p>","DOI":"10.1111\/1467-9868.00092","type":"journal-article","created":{"date-parts":[[2003,3,12]],"date-time":"2003-03-12T19:34:29Z","timestamp":1047497669000},"page":"701-714","source":"Crossref","is-referenced-by-count":112,"title":["Likelihood Ratio Tests for Fixed Model Terms using Residual Maximum Likelihood"],"prefix":"10.1093","volume":"59","author":[{"given":"S. J.","family":"Welham","sequence":"first","affiliation":[{"name":"IACR\u2013Rothamsted , Harpenden , UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R.","family":"Thompson","sequence":"additional","affiliation":[{"name":"Roslin Institute , Edinburgh , UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2002,1,6]]},"container-title":["Journal of the Royal Statistical Society Series B: Statistical Methodology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2F1467-9868.00092","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2F1467-9868.00092","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/academic.oup.com\/jrsssb\/article-pdf\/59\/3\/701\/49588933\/jrsssb_59_3_701.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/jrsssb\/article-pdf\/59\/3\/701\/49588933\/jrsssb_59_3_701.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,3,22]],"date-time":"2023-03-22T05:20:08Z","timestamp":1679462408000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/jrsssb\/article\/59\/3\/701\/7083067"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1997,9,1]]},"references-count":0,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2002,1,6]]},"published-print":{"date-parts":[[1997,9,1]]}},"URL":"https:\/\/doi.org\/10.1111\/1467-9868.00092","relation":{},"ISSN":["1369-7412","1467-9868"],"issn-type":[{"value":"1369-7412","type":"print"},{"value":"1467-9868","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[1997,9]]},"published":{"date-parts":[[1997,9,1]]}}}