Results 21 to 30 of about 16,381 (262)

Estimation Methods of the Multiple-Group One-Dimensional Factor Model: Implied Identification Constraints in the Violation of Measurement Invariance

open access: yesAxioms, 2022
Factor analysis is one of the most important statistical tools for analyzing multivariate data (i.e., items) in the social sciences. An essential case is the comparison of multiple groups on a one-dimensional factor variable that can be interpreted as a ...
Alexander Robitzsch
doaj   +1 more source

Optimal weighting for estimating generalized average treatment effects

open access: yesJournal of Causal Inference, 2022
In causal inference, a variety of causal effect estimands have been studied, including the sample, uncensored, target, conditional, optimal subpopulation, and optimal weighted average treatment effects.
Kallus Nathan, Santacatterina Michele
doaj   +1 more source

Selection Consistency of Lasso-Based Procedures for Misspecified High-Dimensional Binary Model and Random Regressors

open access: yesEntropy, 2020
We consider selection of random predictors for a high-dimensional regression problem with a binary response for a general loss function. An important special case is when the binary model is semi-parametric and the response function is misspecified under
Mariusz Kubkowski, Jan Mielniczuk
doaj   +1 more source

Model Misspecification as the Causes of Flypaper Effect

open access: yesProceedings, 2023
The aim of this paper is to investigate the relationship between the Fly-paper effect (FPE) and possible errors in the specification of econometric models used in the empirical analysis of FPE.
Siniša Mali
doaj   +1 more source

Evaluating performance of covariate-constrained randomization (CCR) techniques under misspecification of cluster-level variables in cluster-randomized trials

open access: yesContemporary Clinical Trials Communications, 2021
Covariate constrained randomization (CCR) is a method of controlling imbalance in important baseline covariates in cluster-randomized trials (CRT). We use simulated CRTs to investigate the performance (control of imbalance) of CCR relative to simple ...
Madeleine Organ   +5 more
doaj   +1 more source

Model misspecification [PDF]

open access: yesStatistical Modelling, 2008
A common problem in statistical modelling is to distinguish between finite mixture distribution and a homogeneous non-mixture distribution. Finite mixture models are widely used in practice and often mixtures of normal densities are indistinguishable from homogenous non-normal densities.
Tarpey, Thaddeus   +2 more
openaire   +4 more sources

MTE with Misspecification

open access: yes, 2022
This paper studies the implication of a fraction of the population not responding to the instrument when selecting into treatment. We show that, in general, the presence of non-responders biases the Marginal Treatment Effect (MTE) curve and many of its functionals. Yet, we show that, when the propensity score is fully supported on the unit interval, it
Martínez-Iriarte, Julián   +1 more
openaire   +2 more sources

A critical re-evaluation of the regression model specification in the US D1 EQ-5D value function

open access: yesPopulation Health Metrics, 2012
Background The EQ-5D is a generic health-related quality of life instrument (five dimensions with three levels, 243 health states), used extensively in cost-utility/cost-effectiveness analyses.
Rand-Hendriksen Kim   +2 more
doaj   +1 more source

An improved multiply robust estimator for the average treatment effect

open access: yesBMC Medical Research Methodology, 2023
Background In observational studies, double robust or multiply robust (MR) approaches provide more protection from model misspecification than the inverse probability weighting and g-computation for estimating the average treatment effect (ATE). However,
Ce Wang   +4 more
doaj   +1 more source

Adapting to Misspecification in Contextual Bandits

open access: yesCoRR, 2021
Appeared at NeurIPS ...
Dylan J. Foster   +3 more
openaire   +3 more sources

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