• Title/Summary/Keyword: weighted specific category agreement

Search Result 1, Processing Time 0.016 seconds

Permutation p-values for specific-category kappa measure of agreement (특정 범주에 대한 평가자간 카파 일치도의 퍼뮤테이션 p값)

  • Um, Yonghwan
    • Journal of the Korean Data and Information Science Society
    • /
    • v.27 no.4
    • /
    • pp.899-910
    • /
    • 2016
  • Asymptotic tests are often not suitable for the analysis of sparse ordered contingency tables as asymptotic p-values may either overestimate or underestimate the true pvalues. In this pater, we describe permutation procedures in which we compute exact or resampling p-values for a weighted specific-category agreement in ordered $k{\times}k$ contingency tables. We use the weighted specific-category kappa proposed by $Kv{\dot{a}}lseth$ to measure the extent to which two independent raters agree on the specific categories. We carried out comparison studies between exact p-values, resampling p-values and asymptotic p-values using $3{\times}3$ contingency data (real and artificial data sets) and $4{\times}4$ artificial contingency data.