{
  "creator": [
    "Cao, Lixia",
    "Tong, Tingting",
    "Trafimow, David",
    "Wang, Tonghui",
    "Chen, Xiangfei"
  ],
  "date": [
    "2022-03-31"
  ],
  "description": [
    "Although the literature on the a priori procedure, designed to help researchers determine the sample sizes they should use in their substantive research, is expanding rapidly, there are two important limitations. First, there is a need to expand to new popular distributions, log-normal and gamma distributions, and the present work provides those expansions. Second, there is a need to test the consequences of wrong distributional assumptions; for example, assuming a log-normal distribution when the population follows a gamma distribution, or the reverse. The present work addresses the limitations with respect to estimating population means, and it includes computer simulations, links to free and user-friendly programs that researchers can utilize for their own research, and two examples involving real data sets for illustrations of our main results."
  ],
  "format": [
    "application/pdf",
    "text/html",
    "text/xml"
  ],
  "identifier": [
    "https://meth.psychopen.eu/index.php/meth/article/view/7321",
    "10.5964/meth.7321"
  ],
  "language": [
    "eng"
  ],
  "publisher": [
    "PsychOpen GOLD / Leibniz Institut for Psychology (ZPID)"
  ],
  "relation": [
    "https://meth.psychopen.eu/index.php/meth/article/view/7321/7321.pdf",
    "https://meth.psychopen.eu/index.php/meth/article/view/7321/7321.html",
    "https://meth.psychopen.eu/index.php/meth/article/view/7321/7321.xml"
  ],
  "rights": [
    "Copyright (c) 2022 Lixia  Cao, Tingting Tong, David Trafimow, Tonghui Wang, Xiangfei Chen",
    "https://creativecommons.org/licenses/by/4.0"
  ],
  "source": [
    "Methodology; Vol. 18 No. 1 (2022); 24-43",
    "1614-2241",
    "1614-1881",
    "10.5964/meth.v18i1"
  ],
  "subject": [
    "a priori procedure",
    "log-normal distribution",
    "skew normal",
    "gamma distribution",
    "robustness",
    "minimum sample size"
  ],
  "title": [
    "The A Priori Procedure for Estimating the Mean in Both Log-Normal and Gamma Populations and Robustness for Assumption Violations"
  ],
  "type": [
    "info:eu-repo/semantics/article",
    "info:eu-repo/semantics/publishedVersion",
    "Peer-reviewed article"
  ]
}