Optimal sampling ratios in comparative diagnostic trials

Multiple testing procedures for analyzing stratified comparative clinical trials using odds ratios

This article investigates various multiple testing procedures for the testing of unity odds ratios from stratified studies. These procedures compare individual ordered p-values to a series of adjusted nominal levels, and are employed to distinguish between significance and insignificance in stratified studies. Three commonly used approaches for determining p-values are considered: the asymptoti...

A Comparative Study of Performance of Adaptive Web Sampling and General Inverse Adaptive Sampling in Estimating Olive Production in Iran

Nowadays, there is an increasing use of sampling methods in network and spatial populations. Although the most common link-tracing designs such as adaptive cluster sampling and snowball sampling have advantages over conventional sampling designs such as simple random sampling and cluster sampling, these designs still present many drawbacks. Adaptive web sampling is a new link-tracing design tha...

Optimal sex ratios in structured populations.

In this paper, we develop a general method to determine evolutionary equilibrium sex ratios and to check evolutionary stability, continuous stability and invadability in exact genetic models with or without dominance. This method is then applied to three kinds of models for structured populations: the first one concerns Hamilton's LMC model, except that only a fraction beta of female offspring ...

Determination of Optimal Sampling Design for Spatial Data Analysis

Extended Abstract. Inferences for spatial data are affected substantially by the spatial configuration of the network of sites where measurements are taken. Consider the following standard data-model framework for spatial data. Suppose a continuous, spatially-varying quantity, Z, is to be observed at a predetermined number, n, of points ....[ To Countinue Click here]

Making sense of diagnostic test likelihood ratios.