Results 1 to 10 of about 82,329 (299)

Evaluating differential item functioning through effect size measures in logistic regression: implications for language assessment

Language Testing in Asia
This study investigates the consistency of statistical tests and the effectiveness of effect size measures in evaluating items with Differential Item Functioning (DIF) in a large-scale assessment.
Ali Darabi Bazvand, Balal Izanloo, Seyed Mohammad Reza Amirian, Kaveh Jalilzadeh   +3 more
doaj   +1 more source

The linkage between oil and agricultural commodity prices in the light of the perceived global risk

Agricultural Economics (AGRICECON), 2014
The paper examines a systematic interrelationship between the world oil and agricultural commodity prices, taking the role of the USD and the perceived global market risks into consideration for the period from January 1990 to June 2013.
Giray GOZGOR, Baris KABLAMACI
doaj   +1 more source

UNA COMPARACIÓN ENTRE LA INFERENCIA BASADA EN LAS ESTADÍSTICAS DE WALD Y RAZÓN DE VEROSIMILITUD EN LOS MODELOS LOGIT Y PROBIT VÍA MONTE CARLO UNA COMPARACIÓN ENTRE LA INFERENCIA BASADA EN LAS ESTADÍSTICAS DE WALD Y RAZÓN DE VEROSIMILITUD EN LOS MODELOS LOGIT Y PROBIT VÍA MONTE CARLO

Revista Colombiana de Estadística, 2005
In this paper we present a study which evaluates and compares the performance of hypothesis testing and confidence intervals based on Wald’s statistic with those based on the likelihood ratio statistic for probit and logit models.
Lemonte Artur José, Vanegas Luis Hernando   +1 more
doaj  

Exposure‐Response Analysis for Time‐to‐Event Data in the Presence of Adaptive Dosing: Efficient Approaches and Pitfalls

CPT: Pharmacometrics & Systems Pharmacology
Analyzing exposure‐response (E‐R) relationships for time‐to‐event (TTE) endpoints presents challenges due to the inherent time‐dependent nature of the data.
Alexandra Lavalley‐Morelle, Félicien Le Louedec, Richard Anziano, France Mentré, Martin Bergstrand   +4 more
doaj   +1 more source

Value Relevance and Stock Market Performance: Evidence from the Dar es Salaam Stock Exchange in Tanzania

International Journal of Applied Research in Business and Management
This study applied a longitudinal correlational design to evaluate 2010 - 2022 data for Dar es Salaam Stock Exchange (DSE)-listed firms in Tanzania to examine the relationship between value relevance and stock market performance.
Asumpta Muna, Henry Chalu, Chirongo Moses Keregero   +2 more
doaj   +1 more source

Associations in intentions to use anabolic-androgenic steroids among non-consuming boys and men with probable eating disorders and muscle dysmorphia

Journal of Eating Disorders
Background Anabolic-androgenic steroids (AAS) are used to achieve a muscular and lean body to align with current ideals for boys and men. Identifying associations with intentions to use AAS, a precursor to actual use, is critical for prevention efforts ...
Kyle T. Ganson, Timothy Piatkowski, Alexander Testa, Jason M. Nagata   +3 more
doaj   +1 more source

Hypothesis Test to Compare Two Paired Binomial Proportions: Assessment of 24 Methods

Mathematics
The comparison of two paired binomial proportions is a topic of interest in statistics, with important applications in medicine. There are different methods in the statistical literature to solve this problem, and the McNemar test is the best known of ...
José Antonio Roldán-Nofuentes, Tulsi Sagar Sheth, José Fernando Vera-Vera   +2 more
doaj   +1 more source

Homogeneity Test of Ratios of Two Proportions in Stratified Bilateral and Unilateral Data

Mathematics
In paired-organ studies such as ophthalmology, otolaryngology, and rheumatology, etc., various approaches take highly correlated bilateral data into account for homogeneity tests but are less likely to focus on combined bilateral and unilateral data ...
Huipei Wang, Chang-Xing Ma
doaj   +1 more source

Asymptotic Properties of the Wald-Wolfowitz Test of Randomness

The Annals of Mathematical Statistics, 1950
The paper investigates certain asymptotic properties of the test of randomness based on the statistic $R_h = \sum^n_{i=1} x_ix_{i+h}$ proposed by Wald and Wolfowitz. It is shown that the conditions given in the original paper for asymptotic normality of $R_h$ when the null hypothesis of randomness is true can be weakened considerably.
openaire   +3 more sources

Generalised Wald Type Test of Nonlinear Restrictions

OALib, 2005
Abstract This paper proposes a generalised Wald type tests to test the hypothesis of nonlinear restrictions. We circumvent the problem of singularity of the covariance matrix associated with the usual Wald test by proposing a generalised inverse procedure, and an alternative simple procedure which can be approximated by a suitable chi-square ...
openaire   +1 more source