Journal of the Iranian Statistical Society

Journal of the Iranian Statistical Society

Asymptotic Score Test Statistic in Multilevel Models with Application to the Income Tax Payments Data

Document Type : Original Article

Authors
‎Department of Statistics‎, ‎ ‎Imam Khomeini International University‎, ‎Qazvin‎, ‎Iran‎
10.22034/jirss.2026.2096683.1234
Abstract
Multilevel structural equation modeling is a statistical framework of major relevance for research concerned with people’s interpersonal dynamics. The purpose of this study is to determine the asymptotic distribution of score test statistics for hypothesis tests in a multilevel regression. We estimate the model parameters using the EM algorithm. Then, we derive the asymptotic distribution of score test statistics for regression tests. Through simulation studies, the performance of the EM algorithm is evaluated. Additionally, the relative frequency of the regression test is examined. A real data analysis carried out to illustrate the theoretically obtained procedures. The proposed method is then applied to predict the logarithm of the total positive tax liability from individual characteristics and economic characteristics, to demonstrate the practical application of the theoretical findings.
Keywords
Subjects

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Articles in Press, Accepted Manuscript
Available Online from 12 November 2026

  • Receive Date 05 August 2026
  • Revise Date 01 November 2026
  • Accept Date 01 November 2026