scholarly journals Hierarchical model building, fitting, and checking: a behind-the-scenes look at a Bayesian analysis of arsenic exposure pathways

2009 ◽  
Vol 4 (1) ◽  
pp. 1-35 ◽  
Author(s):  
Peter F. Craigmile ◽  
Catherine A. Calder ◽  
Hongfei Li ◽  
Rajib Paul ◽  
Noel Cressie
Keyword(s):  
Bayesian Analysis ◽  
Hierarchical Model ◽  
Model Building ◽  
Arsenic Exposure ◽  
Exposure Pathways

Demographic and Behavioral Modifiers of Arsenic Exposure Pathways: A Bayesian Hierarchical Analysis of NHEXAS Data

2008 ◽  
Vol 42 (15) ◽  
pp. 5607-5614 ◽  
Author(s):  
Thomas J. Santner ◽  
Peter F. Craigmile ◽  
Catherine A. Calder ◽  
Rajib Paul
Keyword(s):  
Arsenic Exposure ◽  
Hierarchical Analysis ◽  
Bayesian Hierarchical ◽  
Exposure Pathways

scholarly journals The Geschwind–Behan–Galaburda Model (GBGM) of Cerebral Lateralization: A Critique and Prospective

1996 ◽  
Vol 9 (3-4) ◽  
pp. 107-113
Author(s):  
C. M. J. Braun
Keyword(s):  
General Theory ◽  
Immune Function ◽  
Hierarchical Model ◽  
Theoretical Approach ◽  
Interdisciplinary Communication ◽  
Model Building ◽  
Empirical Support ◽  
Critical Assessment ◽  
Cerebral Lateralization ◽  
Analytic Review

In the wake of, and as a complement to, a recently published major meta-analytic review of empirical support of the Geschwind–Behan–Galaburda model (GBGM) of cerebral lateralization (CL) the present brief essay attempts to present a critical assessment of the theoretical approach underlying the GBGM. The GBGM is criticized for having been misguided in its representation of the cerebral basis of handedness, and of the links between testosterone and immune function. Some guidelines are presented for the development of a general theory of CL, emphasizing animal research, greater interdisciplinary communication, a hierarchical model-building approach, and the relevance of neuropharmacology and psychiatry.

scholarly journals Bayesian Analysis of High Throughput Data

2016 ◽  
Author(s):  
Eric J. Ma ◽  
Islam T. M. Hussein ◽  
Vivian J. Zhong ◽  
Christopher Bandoro ◽  
Jonathan A. Runstadler
Keyword(s):  
Bayesian Analysis ◽  
High Throughput ◽  
Hierarchical Model ◽  
Measurement Data ◽  
Simulated Data ◽  
Statistical Parameters ◽  
High Throughput Data ◽  
Improve Accuracy ◽  
Simple Format ◽  
Evaluation Parameters

AbstractDuplicate or triplicate experimental replicates are commonplace in the high throughput literature. However, it has not been tested whether this is statistically defensible or not. To address this issue, we use probabilistic programming to develop a simple hierarchical model for analyzing high throughput measurement data. With the model and simulated data, we show that a small increase in replicate experiments can quantitatively improve accuracy in measurement. We also provide posterior densities for statistical parameters used in the evaluation of HT data. Finally, we provide an extensible open source implementation that ingests data structured in a simple format and produces posterior densities of estimated measurement and assay evaluation parameters.

Bayesian analysis of within-field variability of corn yield using a spatial hierarchical model

2008 ◽  
Vol 10 (2) ◽  
pp. 111-127 ◽  
Author(s):  
Pingping Jiang ◽  
Zhuoqiong He ◽  
Newell R. Kitchen ◽  
Kenneth A. Sudduth
Keyword(s):  
Bayesian Analysis ◽  
Hierarchical Model ◽  
Corn Yield ◽  
Field Variability

The sense of presence in virtual environments:

2003 ◽  
Vol 15 (2) ◽  
pp. 69-71 ◽  
Author(s):  
Thomas W. Schubert
Keyword(s):  
Virtual Environments ◽  
Coding Theory ◽  
Model Building ◽  
Self Report ◽  
Survey Study ◽  
Spatial Presence ◽  
Component Structure ◽  
Sense Of Presence ◽  
Being There ◽  
Measure Sense

Abstract. The sense of presence is the feeling of being there in a virtual environment. A three-component self report scale to measure sense of presence is described, the components being sense of spatial presence, involvement, and realness. This three-component structure was developed in a survey study with players of 3D games (N = 246) and replicated in a second survey study (N = 296); studies using the scale for measuring the effects of interaction on presence provide evidence for validity. The findings are explained by the Potential Action Coding Theory of presence, which assumes that presence develops from mental model building and suppression of the real environment.

Influence of General and Crystallized Intelligence on Vocabulary Test Performance

2002 ◽  
Vol 18 (1) ◽  
pp. 78-84 ◽  
Author(s):  
Eva Ullstadius ◽  
Jan-Eric Gustafsson ◽  
Berit Carlstedt
Keyword(s):  
Hierarchical Model ◽  
Test Performance ◽  
Verbal Ability ◽  
Testing Procedure ◽  
Intellectual Ability ◽  
Analysis Of Covariance ◽  
Categorical Variables ◽  
Vocabulary Test ◽  
Crystallized Intelligence ◽  
General Ability

Summary: Vocabulary tests, part of most test batteries of general intellectual ability, measure both verbal and general ability. Newly developed techniques for confirmatory factor analysis of dichotomous variables make it possible to analyze the influence of different abilities on the performance on each item. In the testing procedure of the Computerized Swedish Enlistment test battery, eight different subtests of a new vocabulary test were given randomly to subsamples of a representative sample of 18-year-old male conscripts (N = 9001). Three central dimensions of a hierarchical model of intellectual abilities, general (G), verbal (Gc'), and spatial ability (Gv') were estimated under different assumptions of the nature of the data. In addition to an ordinary analysis of covariance matrices, assuming linearity of relations, the item variables were treated as categorical variables in the Mplus program. All eight subtests fit the hierarchical model, and the items were found to load about equally on G and Gc'. The results also indicate that if nonlinearity is not taken into account, the G loadings for the easy items are underestimated. These items, moreover, appear to be better measures of G than the difficult ones. The practical utility of the outcome for item selection and the theoretical implications for the question of the origin of verbal ability are discussed.

Masked Translation Priming Effects With Highly Proficient Simultaneous Bilinguals

2010 ◽  
Vol 57 (2) ◽  
pp. 98-107 ◽  
Author(s):  
Jon Andoni Duñabeitia ◽  
Manuel Perea ◽  
Manuel Carreiras
Keyword(s):  
Lexical Decision ◽  
Hierarchical Model ◽  
Priming Effect ◽  
Masked Priming ◽  
The Other ◽  
Memory Organization ◽  
Priming Effects ◽  
Bilingual Memory ◽  
Translation Priming ◽  
Masked Translation Priming

One essential issue for models of bilingual memory organization is to what degree the representation from one of the languages is shared with the other language. In this study, we examine whether there is a symmetrical translation priming effect with highly proficient, simultaneous bilinguals. We conducted a masked priming lexical decision experiment with cognate and noncognate translation equivalents. Results showed a significant masked translation priming effect for both cognates and noncognates, with a greater priming effect for cognates. Furthermore, the magnitude of the translation priming was similar in the two directions. Thus, highly fluent bilinguals do develop symmetrical between-language links, as predicted by the Revised Hierarchical model and the BIA+ model. We examine the implications of these results for models of bilingual memory.

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