Representing a unique contribution to the literature surrounding educational research, this landmark text will be invaluable for students and researchers in education and public policy, as well as those interested in social science.
Author: Richard J. Murnane
Publisher: Oxford University Press
Educational policy-makers around the world constantly make decisions about how to use scarce resources to improve the education of children. Unfortunately, their decisions are rarely informed by evidence on the consequences of these initiatives in other settings. Nor are decisions typically accompanied by well-formulated plans to evaluate their causal impacts. As a result, knowledge about what works in different situations has been very slow to accumulate. Over the last several decades, advances in research methodology, administrative record keeping, and statistical software have dramatically increased the potential for researchers to conduct compelling evaluations of the causal impacts of educational interventions, and the number of well-designed studies is growing. Written in clear, concise prose, Methods Matter: Improving Causal Inference in Educational and Social Science Research offers essential guidance for those who evaluate educational policies. Using numerous examples of high-quality studies that have evaluated the causal impacts of important educational interventions, the authors go beyond the simple presentation of new analytical methods to discuss the controversies surrounding each study, and provide heuristic explanations that are also broadly accessible. Murnane and Willett offer strong methodological insights on causal inference, while also examining the consequences of a wide variety of educational policies implemented in the U.S. and abroad. Representing a unique contribution to the literature surrounding educational research, this landmark text will be invaluable for students and researchers in education and public policy, as well as those interested in social science.
Author: Dr. Leonardo MartinezPublish On: 2010-04-01
We study the sovereign default model that has been used to account for the cyclical behavior of interest rates in emerging market economies.
Author: Dr. Leonardo Martinez
Publisher: International Monetary Fund
Category: Business & Economics
We study the sovereign default model that has been used to account for the cyclical behavior of interest rates in emerging market economies. This model is often solved using the discrete state space technique with evenly spaced grid points. We show that this method necessitates a large number of grid points to avoid generating spurious interest rate movements. This makes the discrete state technique significantly more inefficient than using Chebyshev polynomials or cubic spline interpolation to approximate the value functions. We show that the inefficiency of the discrete state space technique is more severe for parameterizations that feature a high sensitivity of the bond price to the borrowing level for the borrowing levels that are observed more frequently in the simulations. In addition, we find that the efficiency of the discrete state space technique can be greatly improved by (i) finding the equilibrium as the limit of the equilibrium of the finite-horizon version of the model, instead of iterating separately on the value and bond price functions and (ii) concentrating grid points in asset levels at which the bond price is more sensitive to the borrowing level and in levels that are observed more often in the model simulations. Our analysis questions the robustness of results in the sovereign default literature and is also relevant for the study of other credit markets.
This method for the separation of mineral matter from coal employs agitation of
finely crushed coal with oil and water to yield a suspension of minerals in the
water and a coal - oil " ama.lgam . ' Himus and Basak ( 1949 ) have compared
The purpose of this survey was to ascertain Korean teacher-trainees' perspectives on the awareness, likability, perceived usefulness and prospective application of varied language teaching methods that they had been taught in a sixteen-week ...
Author: Todd Jobbitt
The purpose of this survey was to ascertain Korean teacher-trainees' perspectives on the awareness, likability, perceived usefulness and prospective application of varied language teaching methods that they had been taught in a sixteen-week language teaching methodology course. What did the students think about these methods? Will students actually try out new methods, or techniques from these methods, in their present or future teaching contexts? Qualitative and quantitative results show that although students overwhelmingly had limited prior exposure to a variety of teaching methods and shared a heavy reliance on a select few methods, there was a strong propensity for future learning using the methods and techniques presented in the course.
07.04 02 Management and Supervision of Curriculum and lnstruction The study
of the principles and practices of ... 07.0501 The study of the theory, methods,
and techniques involved in teaching the subject matter of Agriculture and ...
earlier scientific and philosophical traditions, comparing Galileo's methods of
scientific inquiry to those fashionable among the sixteenth-century School of
Padua199; or they identified a particular influence on the young Galileo in
authors and ...
Author: Gregorio Baldin
Publisher: Springer Nature
This book, translated from Italian, discusses the influence of Galileo on Hobbes’ natural philosophy. In his De motu, loco et tempore or Anti-White (~ 1643), Thomas Hobbes describes Galileo as “the greatest philosopher of all times”, and in De Corpore (1655), the Italian scientist is presented as the one who “opened the door of all physics, that is, the nature of motion.” The book gives a detailed analysis of Galileo’s legacy in Hobbes’s philosophy, exploring four main issues: a comparison between Hobbes’ and Mersenne’s natural philosophies, the Galilean Principles of Hobbes’ philosophical system, a comparison between Galileo’s momentum and Hobbes’s conatus , and Hobbes’ and Galileo’s theories of matter. The book also analyses the role played by Marin Mersenne, in spreading Galileo’s ideas in France, and as a discussant of Hobbes. It highlights the many aspects of Hobbes’ relationship with Galileo: the methodological and epistemological elements, but also the conceptual and the lexical analogies in the field of physics, to arrive, finally, at a close comparison on the subject of the matter. From this analysis emerges a shared mechanical conception of the universe open and infinite, that replaces the Aristotelian cosmos, and which is populated by two elements only: matter and motion.
Munitions to show how he came into the The report goes on to state the methods matter , and a different reply and a fuller of valuation - namely , cost , less
deprecia one from the Prime Minister , and still tion ; current market price ; or a
II . comland ; repeated efforts in this humble on this subject may possibly see
more field of social warfare do not give ground for hope when they look at the
increased confidence in these methods matter from another side . While conof ...
The true methods matter of our Lord's references to the Old Testa of these might
well be left for discovery much A ment . Critics who believe that Christ's
references later . The Pharisees were taken upon their own to the authorship of
portions of ...
4.1 The terms “ particulate matter , " " dis 6.2 Additional requirements concerning
spesolved matter , " " total matter , ” and others re cific contaminants or methods
of preparation lated to water constituents determined in these may be included in
The effects of the structure and efficiency of agricultural systems are pervasive throughout developing economies, reaching numerous sectors including food security, health, economic growth, income inequality, poverty and vulnerability, and ...
Author: Sydney M. Gourlay
Category: Agricultural productivity
The effects of the structure and efficiency of agricultural systems are pervasive throughout developing economies, reaching numerous sectors including food security, health, economic growth, income inequality, poverty and vulnerability, and gender equality, among others. Despite the ubiquitous impacts of agricultural productivity on various indicators of wellbeing, realized productivity is generally well below its potential. Increasing agricultural productivity, therefore, is central to many poverty reduction policies. Policy aimed at increasing agricultural productivity is often informed by household surveys that rely on self-reported information. Measurement error in household survey data could potentially lead to inappropriate or insufficient understandings of the drivers of agricultural production and the policy levers that could be used to improve productivity.I hypothesize that measurement error in household surveys, including that resulting from inadequate survey methodology, alters our understanding of certain agricultural productivity relationships. Unique survey data from Uganda and Ethiopia, which included the measurement of key agricultural inputs and production through both traditional self-reported methods as well as utilizing highly advanced data collection methodology, allows for unprecedented agricultural analysis. This dissertation, which takes the form of three essays, examines the following questions: (i) can the commonly observed inverse farm size-productivity relationship be explained by measurement error in production measurement?; (ii) how is agricultural productivity hindered by crop-specific soil suitability, and how are productivity constraints distributed across the agricultural population?; and (iii) does high-resolution plot-level soil data reveal gender-differentiated land quality endowments, and does this explain observed gender-based productivity gaps? Through this research I illustrate that methods do matter. The controversial inverse farm size-productivity relationship vanishes when objective methods of measuring crop production and plot area are used in place of farmer estimated production. Analysis of crop-specific soil suitability reveals additional nuances of agricultural productivity that are otherwise undetectable with farmer-assessment of soils, highlighting limited potential production gains for maize farmers in Eastern Uganda. Finally, utilization of high-resolution plot-level soil data vis-a-vis geospatial soil data uncovers gender-based differences in soil quality endowments, which, when included in productivity analysis, are shown to make up as much as 30 percent of the total gender-based productivity gap in Malawi.
Author: American Society for Testing and MaterialsPublish On: 1942
3 Section Scope Unsaponified Matter 28 Rosin ( McNicoll Method ) 29 to 32 1.
These methods describe procedures Preparation of Total Fatty Matter , Fatty and
Rosin Acids , and Unsaponified Matter .. 33 and 34 for the sampling and
Author: American Society for Testing and Materials
Both methods collected equivalent weights of total suspended matter and similar
particle size distributions and were -90 " , efficient for particles > 4.0 um . Glass -
fiber filters retained more lipid - extractable organic matter and saturated ...
... it is by no means clear which methods. Mandler points in the direction of
psychology and economics but his footnotes are noticeably devoid of specific
recommendations. Moreover, within the social sciences research methodology is
a matter ...
Author: Simon Gunn
Publisher: Edinburgh University Press
Providing a lively critical survey of methods for historical research at all levels, this textbook covers well-established sources and methods together with those that are less widely known. It reflects current theoretical and technical approaches to hist
Investigate team teaching as one aspect of the movement towards a systems approach . THE ROLE OF SUBJECT MATTER The Structure of the Disciplines
Another determiner of teaching method is the structure of subject matter . By
Dissipative Particle Dynamics ( DPD ) is one of the most promising simulation
techniques for studies of mesoscopic properties of soft matter systems . Here , we
discuss DPD , its parameterisation in simple systems , as well as in polymeric ...
Author: Mikko Karttunen
Publisher: Springer Science & Business Media
Soft matter and biological systems pose many challenges for theoretical, experimental and computational research. From the computational point of view, these many-body sytems cover variations in relevant time and length scales over many orders of magnitude. Indeed, the macroscopic properties of materials and complex fluids are ultimately to be deduced from the dynamics of the microsopic, molecular level. In these lectures, internationally renowned experts offer a tutorial presentation of novel approaches for bridging these space and time scales in realistic simulations. This volume addresses graduate students and nonspecialist researchers from related areas seeking a high-level but accessible introduction to the state of the art in soft matter simulations.
The lowest energy with an arbitrary momentum is obtained by the projector
Monte Carlo method . This method is applied to the spin - 1 / 2 and spin - 1
Heisenberg antiferromagnetic chains of length 32 . For the S = 1 / 2 case , the
Author: Masuo Suzuki
Publisher: World Scientific
This book reviews recent developments of quantum Monte Carlo methods and some remarkable applications to interacting quantum spin systems and strongly correlated electron systems. It contains twenty-two papers by thirty authors. Some of the features are as follows. The first paper gives the foundations of the standard quantum Monte Carlo method, including some recent results on higher-order decompositions of exponential operators and ordered exponentials. The second paper presents a general review of quantum Monte Carlo methods used in the present book. One of the most challenging problems in the field of quantum Monte Carlo techniques, the negative-sign problem, is also discussed and new methods proposed to partially overcome it. In addition, low-dimensional quantum spin systems are studied. Some interesting applications of quantum Monte Carlo methods to fermion systems are also presented to investigate the role of strong correlations and fluctuations of electrons and to clarify the mechanism of high-c superconductivity. Not only thermal properties but also quantum-mechanical ground-state properties have been studied by the projection technique using auxiliary fields. Further, the Haldane gap is confirmed by numerical calculations. Active researchers in the forefront of condensed matter physics as well as young graduate students who want to start learning the quantum Monte Carlo methods will find this book useful.
It is therefore possible to investigate the eigenvectors and eigenvalues of the
system using the chain method. Therefore, in order to calculate the density of
states n(E) it is necessary to find the coefficients an and b, by recurrent relation (
Author: A.A. Katsnelson
Publisher: Springer Science & Business Media
"Blurb & Contents" This current and comprehensive treatment of the physics of small- amplitude waves in hot magnetized plasmas provides a thorough update of the author's classic Theory of Plasma Waves. New topics include quasi-linear theory, inhomogeneous plasmas, collisions, absolute and convective instability, and mode conversion. Valuable for graduates and advanced undergraduates and an indispensable reference work for researchers in plasmas, controlled fusion, and space science.
DO RESEARCH METHODS MATTER? Does the low ecological validity of the
preponderance of jury simulation research matter? The most effective way to
answer that question was highlighted in Bray and Kerr's (1979) call for studies
Author: Barry Rosenfeld
Publisher: John Wiley & Sons
The only professional resource to focus exclusively on research methods in forensic psychology With specific advice on topics of particular importance to forensic specialists, Research Methods in Forensic Psychology presents state-of-the-discipline summaries of the issues that relate to psychology and law research. Edited by renowned experts in the field, this resource features contributions by leading scholars in forensic psychology and law, with discussion of relevant topics such as: Meta-analysis Jury decision making Internet-based data collection Legal research techniques for the social scientist Offender treatment Competence to stand trial Criminal profiling False confessions and interrogations Trial-related psycho-legal issues Accuracy of eyewitnesses and children Violence risk assessment This comprehensive guide is designed for a wide range of scholars and legal professionals, presenting a succinct overview of the field of psychology and law as viewed by some of the world's foremost experts.