Results 11 to 20 of about 2,148,575 (265)
Fixing the stimulus-as-fixed-effect fallacy in task fMRI. [PDF]
Wellcome Open Res, 2016 Abstract Most fMRI experiments record the brain’s responses to samples of stimulus materials (e.g., faces or words). Yet the statistical modeling approaches used in fMRI research universally fail to model stimulus variability in a manner that affords population generalization--meaning that researchers’ conclusions ...
Westfall J, Nichols TE, Yarkoni T.
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Semiparametric Fixed-Effects Estimator [PDF]
The Stata Journal: Promoting communications on statistics and Stata, 2013 In this article, we describe the Stata implementation of Baltagi and Li's (2002, Annals of Economics and Finance 3: 103–116) series estimator of partially linear panel-data models with fixed effects. After a brief description of the estimator itself, we describe the new command xtsemipar.
Libois, François, Verardi, Vincenzo
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Leverage and firm performance: Empirical evidence from Indian food processing industry [PDF]
Management Science Letters, 2019 The current study examines the association between financial performance and leverage for 56 food processing firms listed in BSE over the period 2000-2018 using pooled OLS, fixed effects, and random effects models.
Sasikanta Tripathy, Abdul Rahman Shaik
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The Impact of Electricity Price on Power-Generation Structure: Evidence From China
Frontiers in Environmental Science, 2021 Being affected by a variety of factors, power-generation structure plays an essential role in a high-quality and sustainable development. The focus of this paper is to evaluate the influence of electricity price on it.
Jing Wang +4 more
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Revealing Structural Patterns of Patent Citation by a Two-Boundary Network Model Based on USPTO Data
IEEE Access, 2020 The patent is one of the carriers of scientific research and development, and an indicator of technical innovation. As a promising approach for modeling complex systems, complex networks could provide the sound theoretical framework for developing proper
Yinghong Ma, Qiaozheng Chi, Le Song
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Behaviormetrika, 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, Jean-Paul +2 more
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Effect of Azotobacter on fixed nitrogen
Biochimica et Biophysica Acta, 1956 The rate of uptake of nitrite and nitrate by A. vinelandii has been measured; at the same time, the rate of formation and disappearance of ammonia (in the case of nitrite) and of both nitrite and ammonia (in the case of nitrate) have been determined.
M. Azim, S.D. Saraf
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On the Fixed-Effects Vector Decomposition [PDF]
Political Analysis, 2011 This paper analyzes the properties of the fixed-effects vector decomposition estimator, an emerging and popular technique for estimating time-invariant variables in panel data models with group effects. This estimator was initially motivated on heuristic grounds, and advocated on the strength of favorable Monte Carlo results, but with no formal ...
Breusch, Trevor +3 more
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LIKELIHOOD INFERENCE IN AN AUTOREGRESSION WITH FIXED EFFECTS [PDF]
Econometric Theory, 2015 We calculate the bias of the profile score for the regression coefficients in a multistratum autoregressive model with stratum-specific intercepts. The bias is free of incidental parameters. Centering the profile score delivers an unbiased estimating equation and, upon integration, an adjusted profile likelihood.
Dhaene, Geert, Jochmans, Koen
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Temporal relationships between job strain and low-back pain
Scandinavian Journal of Work, Environment & Health, 2017 OBJECTIVES: Psychosocial working conditions are suggested risk factors for low-back pain, but it is unclear whether these associations are causal. The present study examined whether there are lagged and bidirectional associations between job strain and ...
Linda L Magnusson Hanson +5 more
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