Non-responses leading to missing data are common in most studies and causes inefficient biased statistical inferences if ignored. When faced with data, many choose employ complete case analysis approach estimate the parameters of model. This however compromises on susceptibility estimates reduced bias minimum variance as expected. Several classical model based techniques imputing values have be...

We discuss some empirical and methodological issues arising when the Cox test statistic for non-nested models is used to test the probit vs. logit specifications. As an example, we consider the models in Bardasi and Monfardini (1997) for the occupational choice by Italian workers among the private, public and self-employed options. Different versions of the test are compared. The bootstrap tech...

Overview: Categorical Data and Graphics Methods for discrete distributions – testing goodness of fit Hanging rootograms Robust distribution plots Methods for two-way frequency tables – understanding association Fourfold displays Sieve diagrams Mosaic displays and loglinear models for n-way tables Mosaic displays Mosaic matrices Correspondence analysis and MCA Logistic and logit regression Logit...