Results 11 to 20 of about 4,435,686 (301)

Comparison of Two Meta-Analysis Methods: Inverse-Variance-Weighted Average and Weighted Sum of Z-Scores [PDF]

open access: yesGenomics & Informatics, 2016
The meta-analysis has become a widely used tool for many applications in bioinformatics, including genome-wide association studies. A commonly used approach for meta-analysis is the fixed effects model approach, for which there are two popular methods ...
Cue Hyunkyu Lee   +3 more
doaj   +1 more source

How to use χ2 test correctly——the analysis of common relative risk for the data of a multiway table and the implementation of SAS software

open access: yesSichuan jingshen weisheng, 2021
The purpose of the paper was to introduce the relative risk analysis method of g×2×2 table data and the calculation method based on SAS software. The contents included the following aspects: firstly, the homogeneity test of the data in the g×2×2 table ...
Hu Chunyan, Hu Liangping
doaj   +1 more source

Fixed Effects IRT Model

open access: yesBehaviormetrika, 2006
A fixed effect item response theory (IRT) model is developed for modeling group specific item parameters. Two applications are presented. The first application is that the proposed model can be used to detect whether a response mechanism is ignorable using the splitter item technique.
Fox, Gerardus J.A.   +2 more
openaire   +2 more sources

Interactions in Fixed Effects Regression Models [PDF]

open access: yesSociological Methods & Research, 2020
An interaction in a fixed effects (FE) regression is usually specified by demeaning the product term. How-ever, algebraic transformations reveal that this strategy does not yield a within-unit estimator. Instead, the standard FE interaction estimator reflects unit-level differences of the interacted variables.
Giesselmann, Marco   +1 more
openaire   +4 more sources

Building an Efficient Model by Using Panel Data

open access: yesCihan University-Erbil Journal of Humanities and Social Sciences, 2023
The panel data models have gained great attention because they consider the effect of changing time series and the cross-sectional units. It has a higher number of degrees of freedom and is, therefore, more efficient.
Nozad H. Mahmood, Obaid M. Al-Zawbaee
doaj   +1 more source

How zombie firms affect healthy firms: The case of Portuguese trade sector

open access: yesRevista Galega de Economía, 2022
Zombie companies can be classified as being nonprofitable, having low productivity and being ten years old or over; these businesses continue to exist due to the support of banks and governments.
Armando da Silva, Ana Gonçalves
doaj   +1 more source

A single-level random-effects cross-lagged panel model for longitudinal mediation analysis [PDF]

open access: yes, 2017
Cross-lagged panel models (CLPMs) are widely used to test mediation with longitudinal panel data. One major limitation of the CLPMs is that the model effects are assumed to be fixed across individuals.
Carroll, Ian A., Chen, Po-Yi, Wu, Wei
core   +1 more source

Network dependence in multi-indexed data on international trade flows [PDF]

open access: yes, 2020
Faced with the problem that conventional multidimensional fixed effects models only focus on unobserved heterogeneity, but ignore any potential cross-sectional dependence due to network interactions, we introduce a model of trade flows between countries
Fischer, Manfred M., LeSage, James P.
core   +1 more source

The Temporal Stability of Buyers’ Preferences for Property Localization on the Housing Market in Szczecin

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2019
The housing market investors’ decisions are caused by their subjective expectations. These decisions are to do with financial resources, activity of local developers and buyers’ individual needs connected to the size of their household or their specific ...
Barbara Batóg, Iwona Foryś
doaj   +1 more source

Basic aspects of meta-analysis. Part 1

open access: yesСеченовский вестник, 2023
Meta-analysis is one of the concepts of scientific methodology, and is a frequent but optional component of systematic reviews of empirical research.
A. Yu. Suvorov   +5 more
doaj   +1 more source

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