Results 21 to 30 of about 3,962,876 (306)

Propensity Scores: A Practical Introduction Using R

open access: yesJournal of MultiDisciplinary Evaluation, 2015
Background: This paper provides an introduction to propensity scores for evaluation practitioners. Purpose: The purpose of this paper is to provide the reader with a conceptual and practical introduction to propensity scores, matching using propensity ...
Antonio Olmos, Priyalatha Govindasamy
doaj   +1 more source

An overview of propensity score matching methods for clustered data

open access: yesStatistical Methods in Medical Research, 2022
Propensity score matching is commonly used in observational studies to control for confounding and estimate the causal effects of a treatment or exposure.
B. Langworthy, Yujie Wu, Molin Wang
semanticscholar   +1 more source

An Introduction to Propensity Score Methods for Reducing the Effects of Confounding in Observational Studies

open access: yesMultivariate Behavioral Research, 2011
The propensity score is the probability of treatment assignment conditional on observed baseline characteristics. The propensity score allows one to design and analyze an observational (nonrandomized) study so that it mimics some of the particular ...
P. Austin
semanticscholar   +1 more source

A Comparison of Propensity Score and Linear Regression Analysis of Complex Survey Data

open access: yesJournal of Data Science, 2021
We extend propensity score methodology to incorporate survey weights from complex survey data and compare the use of multiple linear regression and propensity score analysis to estimate treatment effects in observational data from a complex survey.
Elaine L. Zanutto
semanticscholar   +1 more source

Head to head comparison of the propensity score and the high-dimensional propensity score matching methods

open access: yesBMC Medical Research Methodology, 2016
Background Comparative performance of the traditional propensity score (PS) and high-dimensional propensity score (hdPS) methods in the adjustment for confounding by indication remains unclear.
Jason R. Guertin   +3 more
doaj   +1 more source

Propensity score matching for causal inference and reducing the confounding effects: statistical standard and guideline of Life Cycle Committee

open access: yesLife Cycle, 2022
Since the development of research methodology, there has always been keen interest in developing the accuracy of the research by comparing covariates.
S. Lee, K. P. Acharya
semanticscholar   +1 more source

Weight trimming and propensity score weighting.

open access: yesPLoS ONE, 2011
Propensity score weighting is sensitive to model misspecification and outlying weights that can unduly influence results. The authors investigated whether trimming large weights downward can improve the performance of propensity score weighting and ...
Brian K Lee   +2 more
doaj   +1 more source

Theory and practice of propensity score analysis

open access: yesAnnals of Clinical Epidemiology, 2022
Propensity score analysis has been widely used in observational studies to make a causal inference. This study introduces three assumptions for causal inferences—conditional exchangeability, positivity, and consistency—and five steps for propensity score
Yohei Hashimoto, H. Yasunaga
semanticscholar   +1 more source

Robust Causal Estimation from Observational Studies Using Penalized Spline of Propensity Score for Treatment Comparison

open access: yesStats, 2021
Without randomization of treatments, valid inference of treatment effects from observational studies requires controlling for all confounders because the treated subjects generally differ systematically from the control subjects.
Tingting Zhou   +2 more
doaj   +1 more source

Optimal Covariate Balancing Conditions in Propensity Score Estimation [PDF]

open access: yesJournal of business & economic statistics, 2021
Inverse probability of treatment weighting (IPTW) is a popular method for estimating the average treatment effect (ATE). However, empirical studies show that the IPTW estimators can be sensitive to the misspecification of the propensity score model.
Jianqing Fan   +5 more
semanticscholar   +1 more source

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