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Publications Influence

ON THE USE OF X2 AS A TEST OF INDEPENDENCE IN CONTINGENCY TABLES WITH SMALL CELL EXPECTATIONS

Summary
When an r×c contingency table has many cells having very small expectations, the usual χ2 approximation to the upper tail of the Pearson χ2 goodness-of-fit statistic becomes very… Expand

22 2

Comparisons of the X2, Y2, Freeman-Tukey and Williams's improved G2 test statistics in small samples of one-way multinomials

- H. Lawal
- Mathematics
- 1 August 1984

SUMMARY This paper is concerned with comparison of the null hypothesis distributions of four goodness-of-fit test statistics in multinomial samples. Most previous such work has been concerned only… Expand

27 1

Tables of Percentage Points of Pearson's Goodness‐Of‐Fit Statistic for Use with Small Expectations

- H. Lawal
- Mathematics
- 1 November 1980

21 1

Alternative interaction structures in square contingency tables having ordered classificatory variables

TLDR

10 1

An approximation to the distribution of the X2 goodness-of-fit statistic for use with small expectations

SUMMARY This paper is concerned with the X2 goodness-of-fit test when the observed frequencies are supposed to be distributed according to a specified multinomial distribution. We propose a log… Expand

17 1

Review of Non-Independence, Asymmetry, Skew-Symmetry and Point-Symmetry Models in the Analysis of Social Mobility Data

- H. Lawal
- Mathematics
- 1 June 2004

A non-standard log-linear approach is employed to fit the class of non-independence,asymmetric, skew-symmetric and inclined point-symmetry models to intergenerationalmobility table. While these… Expand

9 1

Using a GLM to Decompose the Symmetry Model in Square Contingency Tables with Ordered Categories

- H. Lawal
- Mathematics
- 1 April 2004

In this paper, we are employing the generalized linear model (GLM) in the form 𝓁ij=Xλ to decompose the symmetry model into the class of models discussed in Tomizawa (1992). In this formulation, the… Expand

9 1

Implementing point-symmetry models for square contingency tables having ordered categories in SAS

- H. Lawal
- Mathematics
- 2000

In this paper, the class of point-symmetry models in a square contingency table discussed in (Tomizawa, 1985; 1986a; 1986b) are implemented in SAS by employing the non-standard log-linear model… Expand

7 1

Association, Symmetry and Diagonal Models for Occupational Mobility and Other Similar Square Contingency Tables Having Ordered Categorical Variables

- H. Lawal
- Mathematics
- 1993

This paper examines various association, symmetry and “diagonal band” class models for both the British and Danish social mobility data. Composite models are also fitted to these data and the variety… Expand

7 1

Comparisons of Some Chi‐squared Tests for the Test of Independence in Sparse Two‐Way Contingency Tables

- H. Lawal, G. J. G. Uptong
- Mathematics
- 1990

We consider in this paper, the behaviour of a class of the CRESSIE READ (1984) power divergence test statistics indexed by parameter λ - I (λ), with the modified X2 test statistics (LU) proposed by… Expand

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