<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.0 20120330//EN" "JATS-journalpublishing1.dtd">
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" article-type="research-article">
  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">JDS</journal-id>
      <journal-title-group>
        <journal-title>Journal of Data Science</journal-title>
      </journal-title-group>
      <issn pub-type="epub">1680-743X</issn>
      <issn pub-type="ppub">1680-743X</issn>
      <publisher>
        <publisher-name>SOSRUC</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id">120401</article-id>
      <article-id pub-id-type="doi">10.6339/JDS.201410_12(4).0001</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Research Article</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Forward Selection Two Sample Binomial Test</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Wong</surname>
            <given-names>Kam-Fai</given-names>
          </name>
          <xref ref-type="aff" rid="j_JDS_aff_000"/>
        </contrib>
        <aff id="j_JDS_aff_000">Institute of Statistics, National University of Kaohsiung, Kaohsiung, Taiwan</aff>
        <contrib contrib-type="author">
          <name>
            <surname>Wong</surname>
            <given-names>Weng-Kee</given-names>
          </name>
          <xref ref-type="aff" rid="j_JDS_aff_001"/>
        </contrib>
        <aff id="j_JDS_aff_001">Department of Biostatistics, University of California, Los Angeles, CA 90095, U.S.A.</aff>
        <contrib contrib-type="author">
          <name>
            <surname>Lin</surname>
            <given-names>Miao-Shan</given-names>
          </name>
          <xref ref-type="aff" rid="j_JDS_aff_002"/>
        </contrib>
        <aff id="j_JDS_aff_002">Institute of Statistics, National University of Kaohsiung, Kaohsiung, Taiwan</aff>
      </contrib-group>
      <volume>12</volume>
      <issue>4</issue>
      <fpage>279</fpage>
      <lpage>294</lpage>
      <permissions>
        <ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/>
      </permissions>
      <abstract>
        <p>Abstract: Fisher’s exact test (FET) is a conditional method that is frequently used to analyze data in a 2 × 2 table for small samples. This test is conservative and attempts have been made to modify the test to make it less conservative. For example, Crans and Shuster (2008) proposed adding more points in the rejection region to make the test more powerful. We provide another way to modify the test to make it less conservative by using two independent binomial distributions as the reference distribution for the test statistic. We compare our new test with several methods and show that our test has advantages over existing methods in terms of control of the type 1 and type 2 errors. We reanalyze results from an oncology trial using our proposed method and our software which is freely available to the reader.</p>
      </abstract>
      <kwd-group>
        <label>Keywords</label>
        <kwd>2×2 contingency table</kwd>
        <kwd>Binary data</kwd>
        <kwd>Conditional test</kwd>
      </kwd-group>
    </article-meta>
  </front>
</article>
