The UK Health Protection Agency advises health care workers caring for patients with probable or confirmed flu-like illnesses, with serious respiratory illnesses or where aerosol generating procedures are being undertaken to use a filtering face piece-3 (FFP3) respirator [1]. Whereas masks protect the environment from wearers, respirators by design protect wearers from the environment. Some sur...

The Hosmer-Lemeshow goodness of fit test is w ell known when data are obtained from a simple random survey. The procedure involves grouping of the observations based on the expected probabilities and then testing the hypothesis that the difference between observed and expected events is simultaneously zero for all the groups. We consider the weighted analog of the hypothesis and propose a test ...

In this paper, we make use of the information measure introduced by Mokkadem (1997) for building a goodness-of-fit test for long-range dependent processes. Our test statistic is performed in the frequency domain and writes as a non linear functional of the normalized periodogram. We establish the asymptotic distribution of our statistic under the null hypothesis. Under specific alternative hypo...

This paper proposes a uni ed approach for consistent testing of linear restrictions on the conditional distribution function of a time series. A wide variety of interesting hypotheses in economics and nance correspond to such restrictions, including hypotheses involving conditional goodness-oft, conditional homogeneity, conditional mixtures, conditional quantiles, conditional symmetry, distribu...

We consider the problem of testing hypotheses on the copula density from n bidimensional observations. We wish to test the null hypothesis characterized by a parametric class against a composite nonparametric alternative. Each density under the alternative is separated in the L2-norm from any density lying in the null hypothesis. The copula densities under consideration are supposed to belong t...

Goodness of fit test procedures for the zeta parametric family based on quadratic distances and the Box--Cox transform are developed. Test statistics based on quadratic distances are shown to follow a chi-square distribution asymptotically. Test procedures based on the Box-Cox transform make use of the estimator of the parameter introduced by the Box-Cox transform, and numerical computations ar...

This paper reports an empirical test of Schneider’s (1987) selection proposition that organizations select people who share the organization’s values. The values of 412 applicants to nine utility companies in the United Kingdom were captured and their fit to (1) the values of the organization as viewed by members of the Top Team (P–OV fit), (2) the values of the recruiting departments as viewed...

Standard goodness-of-fit tests for a parametric regression model against a series of nonparametric alternatives are based on residuals arising from a fitted model.When a parametric regression model is compared with a nonparametric model, goodness-of-fit testing can be naturally approached by evaluating the likelihood of the parametric model within a nonparametric framework. We employ the empiri...

Coarse structural nested mean models are tools to estimate treatment effects from longitudinal observational data with time-dependent confounding. There is, however, no guidance on how to specify the treatment effect model, and model misspecification can lead to bias. We derive a goodness-of-fit test based on modified overidentification restrictions tests for evaluating a treatment effect model...

Existing goodness-of-fit tests for survival data are either exclusively graphical in nature or only test specific model assumptions, such as the proportional hazards assumption. We describe a flexible, parameter-free goodnessof-fit test that provides a simple numerical assessment of a model’s suitability regardless of the structure of the underlying model. Intuitively, the goodnessof-fit test u...