How Much Should We Trust Differences-In-Differences Estimates?
Most papers that employ Differences-in-Differences estimation (DD) use many years of data and focus on serially correlated outcomes but ignore that the resulting standard errors...
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447 publications
Toward the next generation of recommender systems: a survey of the state-of-the-art and possible extensions
This paper presents an overview of the field of recommender systems and describes the current generation of recommendation methods that are usually classified into the following...
Interviewing as qualitative research a guide for researchers in education and the social sciences
The third edition of this bestselling resource provides clear, step-by-step guidance for new and experienced interviewers to help them develop, shape, and reflect on interviewin...
Tensor Decompositions and Applications
This survey provides an overview of higher-order tensor decompositions, their applications, and available software. A tensor is a multidimensional or N-way array. Decompositions...
Chemistry with ADF
Abstract We present the theoretical and technical foundations of the Amsterdam Density Functional (ADF) program with a survey of the characteristics of the code (numerical integ...
Stellar population synthesis at the resolution of 2003
We present a new model for computing the spectral evolution of stellar populations at ages between 100,000 yr and 20 Gyr at a resolution of 3 A across the whole wavelength range...
A Mathematical Theory of Communication
Scientific knowledge grows at a phenomenal pace--but few books have had as lasting an impact or played as important a role in our modern world as The Mathematical Theory of Comm...
The Sloan Digital Sky Survey: Technical Summary
The Sloan Digital Sky Survey (SDSS) will provide the data to support detailed investigations of the distribution of luminous and nonluminous matter in the universe: a photometri...
Practical Statistics for Medical Research
Most medical researchers, whether clinical or non-clinical, receive some background in statistics as undergraduates. However, it is most often brief, a long time ago, and largel...
Short screening scales to monitor population prevalences and trends in non-specific psychological distress
Background. A 10-question screening scale of psychological distress and a six-question short-form scale embedded within the 10-question scale were developed for the redesigned U...
Mail and internet surveys : the tailored design method
Preface to the 2007 Update.Preface to the Second Edition.Acknowledgments.Part One: ELEMENTS OF THE TAILORED DESIGN METHOD.1 Introduction to Tailored Design.2 Writing Questions.3...
The Benefits of Facebook “Friends:” Social Capital and College Students’ Use of Online Social Network Sites
This study examines the relationship between use of Facebook, a popular online social network site, and the formation and maintenance of social capital. In addition to assessing...