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Patterns in gravity-driven granular flows

Igor S. Aranson and Lev S. Tsimring

in Granular Patterns

Published in print:
2008
Published Online:
January 2009
ISBN:
9780199534418
eISBN:
9780191714665
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199534418.003.0006
Subject:
Physics, Condensed Matter Physics / Materials

This chapter provides an overview of mechanisms and theoretical models of pattern formation in dense gravity-driven granular flows. A wide range of phenomena, from one- and two-dimensional avalanches ... More


Creating a Confirmatory Factor Analysis Model

Donna Harrington

in Confirmatory Factor Analysis

Published in print:
2008
Published Online:
January 2009
ISBN:
9780195339888
eISBN:
9780199863662
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195339888.003.0002
Subject:
Social Work, Research and Evaluation

This chapter focuses on creating and specifying a confirmatory factor analysis (CFA) model, beginning with the role of theory and prior research in CFA. It includes a detailed discussion of CFA model ... More


6 Testing parameter constancy

Timo Teräsvirta, Dag Tjøstheim, and W. J. Granger

in Modelling Nonlinear Economic Time Series

Published in print:
2010
Published Online:
May 2011
ISBN:
9780199587148
eISBN:
9780191595387
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199587148.003.0006
Subject:
Economics and Finance, Econometrics

This chapter begins by a introducing the well known Chow test of a single structural break in a linear model. The more general case in which the break‐point is assumed unknown is discussed next. This ... More


3 Parametric nonlinear models

Timo Teräsvirta, Dag Tjøstheim, and W. J. Granger

in Modelling Nonlinear Economic Time Series

Published in print:
2010
Published Online:
May 2011
ISBN:
9780199587148
eISBN:
9780191595387
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199587148.003.0003
Subject:
Economics and Finance, Econometrics

In this chapter, a number of most commonly applied nonlinear time series models are being considered. As opposed to the previous chapter, these models do not generally have their origin in economic ... More


Introduction

Christine DeMars

in Item Response Theory

Published in print:
2010
Published Online:
March 2012
ISBN:
9780195377033
eISBN:
9780199847341
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195377033.003.0001
Subject:
Psychology, Cognitive Psychology

Item response theory (IRT) models show the relationship between the ability or trait (θ) measured by the instrument and an item response. Both the IRT and classical test theory (CTT) indices and how ... More


Requirements

Christine DeMars

in Item Response Theory

Published in print:
2010
Published Online:
March 2012
ISBN:
9780195377033
eISBN:
9780199847341
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195377033.003.0002
Subject:
Psychology, Cognitive Psychology

This chapter describes the types of questions for which item response theory (IRT) is useful, along with the data requirements needed to apply IRT appropriately. It focuses on the application of IRT, ... More


Interpreting Frequencies of Individual Modes: Comparing Frequencies

Sarbani Basu and William J. Chaplin

in Asteroseismic Data Analysis: Foundations and Techniques

Published in print:
2017
Published Online:
May 2018
ISBN:
9780691162928
eISBN:
9781400888207
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691162928.003.0008
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

This chapter discusses different ways in which one can use the frequencies to determine stellar properties. It considers straightforward comparisons of observed frequencies with those of stellar ... More


Item Response Theory in Cross-Cultural Measurement

Thanh V. Tran, Tam Nguyen, and Keith Chan

in Developing Cross-Cultural Measurement in Social Work Research and Evaluation

Published in print:
2017
Published Online:
February 2018
ISBN:
9780190496470
eISBN:
9780190496500
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780190496470.003.0005
Subject:
Social Work, Research and Evaluation

Item response theory (IRT) is a modern measurement theory that, as its name implies, focuses mainly at the item level as opposed to the test level. The underlying principle of IRT is that a ... More


The Theory of Principles and Parameters

Howard Lasnik

in The Minimalist Program

Published in print:
2014
Published Online:
September 2015
ISBN:
9780262527347
eISBN:
9780262327282
Item type:
chapter
Publisher:
The MIT Press
DOI:
10.7551/mitpress/9780262527347.003.0001
Subject:
Linguistics, Theoretical Linguistics

This chapter discusses the kinds of work being pursued within the general principles-and-parameters model as well as some of the thinking that underlies and guides it. The theory of principles and ... More


An Engineering Approach

Robert W. Batterman

in A Middle Way: A Non-Fundamental Approach to Many-Body Physics

Published in print:
2021
Published Online:
August 2021
ISBN:
9780197568613
eISBN:
9780197568644
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780197568613.003.0006
Subject:
Philosophy, Philosophy of Science

This chapter begins with a discussion of Julian Schwinger’s “engineering approach” to particle physics. Schwinger argued from a number of perspectives that the very theory (Quantum Electrodynamics, ... More


Some Notes on Economy of Derivation and Representation

Noam Chomsky

in The Minimalist Program

Published in print:
2014
Published Online:
September 2015
ISBN:
9780262527347
eISBN:
9780262327282
Item type:
chapter
Publisher:
The MIT Press
DOI:
10.7551/mitpress/9780262527347.003.0002
Subject:
Linguistics, Theoretical Linguistics

This chapter discusses the principles underlying the economy of derivation and representation. It begins by considering a range of assumptions concerning language design, with particular emphasis on ... More


A Minimalist Program for Linguistic Theory

Noam Chomsky

in The Minimalist Program

Published in print:
2014
Published Online:
September 2015
ISBN:
9780262527347
eISBN:
9780262327282
Item type:
chapter
Publisher:
The MIT Press
DOI:
10.7551/mitpress/9780262527347.003.0003
Subject:
Linguistics, Theoretical Linguistics

This chapter describes a Minimalist Program for linguistic theory that builds on the principles-and-parameters model and, in particular, on principles of economy of derivation and representation. It ... More


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