Instructor: Michael Tzen Title: Merging Entities: Deterministic, Approximate, & Probabilistic Location: January 31, 2019, 2:00-3:00 PM 4240 Public Affairs Building CCPR Seminar Room Content: Combining information from different groups is a fundamental procedure in the data analysis pipeline. Using NBA and NCAA data, we will walk through deterministic, approximate, and probabilistic methods to merge entities […]
"Replication and Reproducibility in Social Sciences and Statistics: Context, Concerns, and Concrete Measures"
Organizers: Manisha Shah and Daniel Posner November 26, 2018 4240 Public Affairs Building EASST invites East African researchers to apply for a 4-month fellowship at UC Berkeley to build skills in rigorous social science research and impact evaluation–these are the fellows who won this fellowship. Each scholar will present on the following topics; Apollo Maima: […]
Making Sense of Sensitivity: Extending Omitted Variable Bias
We extend the omitted variable bias framework with a suite of tools for sensitivity analysis in regression models that: (i) does not require assumptions about the treatment assignment nor the nature of confounders; (ii) naturally handles multiple confounders, possibly acting non-linearly; (iii) exploits expert knowledge to bound sensitivity parameters; and, (iv) can be easily computed using only standard regression results. In particular, we introduce two novel sensitivity measures suited for routine reporting. The robustness value describes the minimum strength of association unobserved confounding would need to have, both with the treatment and the outcome, to change the research conclusions. The partial R2 of the treatment with the outcome shows how strongly confounders explaining all the residual outcome variation would have to be associated with the treatment to eliminate the estimated effect. Next, we offer graphical tools for elaborating on problematic confounders, examining the sensitivity of point estimates, t-values, as well as “extreme scenarios”. Finally, we describe problems with a common “benchmarking” practice and introduce a novel procedure to instead formally bound the strength of confounders based on comparison to observed covariates. We apply these methods to a running example that estimates the effect of exposure to violence on attitudes toward peace.
The Trans-Pacific Labor Seminar is part of a conference series that brings together Japanese and U.S. economics scholars. The idea is to foster trans-pacific exchange and collaboration, and usually half of the participants are from Japan and half are U.S. based. The conference is co-sponsored by the International Institute, the Terasaki Center for Japanese Studies, […]
2018-2019 CCPR Welcome and Introductions
Please come join us to learn all about the California Center for Population Research!
Professors Jennie Brand, Patrick Heuveline and Hiram Beltran-Sanchez will be presenting.
This will be the kick-off event for the start of the upcoming 2018-2019 CCPR Seminar Series.
The Trouble with Pink and Blue, Gender expression, stigma, and health among U.S. children and adolescents
Abstract: Dr. Gordon will offer a conceptual model for understanding gender expression and health and illustrate this model with examples from recent research on gender nonconformity, school-based violence and bullying, and selected health outcomes in samples of U.S. high school students and young adults.
"Sampling Hidden Populations: Respondent Drive Sampling"
Abstract: Dr. Raymond will discuss the background and implementation of Respondent Driven Sampling (RDS) studies which is wide use among hidden populations the world over. He will review the theoretical basis of RDS including what biases RDS analysis corrects for. Dr. Raymond will share some examples of RDS analysis using RDS Analyst.
"Early Estimates of the Effects of Public School Shootings in California on California Public Schools"
Abstract: I employ data from California public schools covering years 1991 to 2017 with data on public school shootings in the state of California over the same period to study the effects of school shootings on schools. This project aims to understand how dropout, enrolment, and achievement measures respond to school shootings. A secondary objective includes discerning whether fatal and non-fatal shootings have differential effects on schools and student outcomes. I will present early results, and I welcome helpful comments and criticism.
Organizers: Dora Costa, Economics Department June 5-7, 2018 4240 Public Affairs Building Through mutually beneficial partnerships-with our alumni and friends in the professional world, government agencies, and community organizations-the College of Letters & Science has long paved the way for continued leadership, impact and excellence. We have successfully consolidated and strengthened these partnerships, through Partnership […]
Homelessness Workshop Organizers: Randall Kuhn and Till von Wachter May 21-24, 2018 4240 Public Affairs Building In Los Angeles County, homelessness is a crisis affecting productivity, safety and health, including that of UCLA students and staff. While individual research groups at UCLA are addressing this crisis, UCLA lacks a coordinated response in terms of research […]
Instructor: Michael Tzen Content: We will implement the Gompertz Rule and the 2Chainz examples through software commands. Please bring a laptop. We will use the R package `brms` which provides a friendly front end to STAN. This workshop is the followup to Part 1: Bayesian Concepts for Data Analysis. The abstract and slides for part 1 […]
Please join us to hear our residents interesting research and give feedback for their upcoming PAA presentations.
Presenters:
• Elior Cohen, "The impact of skilled immigration on innovation in the Age of Mass Migration"
• Sara Johnsen, “Continuity and Change in Contraceptive Female Sterilization in the United States, 1982 – 2015”
• Wookun Kim, “Does Pro-Natalist Cash Transfer Work? Evidence from Local Programs in South Korea”
• Ravaris Moore, “The Effects of Exposure to Community Gun-Violence on the High School Dropout Rates of California Public School Students”
"Workshop: Bayesian Concepts for Data Analysis"
Instructor: Michael Tzen
Content:
This 1 hour workshop will provide a sampling of introductory concepts for bayesian analysis. We will use Bayes Rule (and its implications) to think about data analysis. When used as a framework to model phenomenon, the analyst gets to work with 4 useful distributions: the prior, posterior, prior predictive, & posterior predictive. We will predict what clothing size 2Chainz wears. We'll also look at the Gompertz Rule from demography. In both examples, the bayesian framework allows us to clearly express the estimand, information from data, information from prior knowledge, and the estimator.
This workshop is the first of a two part series. The first workshop is conceptual while the second workshop will focus on software. The date for the second workshop is TBD.
Please RSVP Here:
https://goo.gl/forms/CF4wuaobfqpug9Js1
The California Census Research Data Center (CCRDC) at University of California Los Angeles invites proposals to present papers and posters at the 2017 Federal Statistical Research Data Center Annual Conference. We also will consider proposals for workshops and panel discussions.
This forum is an opportunity for UCLA faculty to discuss the potential consequences of the 2016 presidential and congressional election for key elements of the American political and legal system, in an informal setting. Please bring your own lunch. Light refreshments will be served. Due to anticipated demand and space constraints, this forum is limited […]
Daniel Lee June 23, 2015 10:00 AM-12:00 PM 4240 Public Affairs Building Stan is an open-source, Bayesian inference tool with interfaces in R, Python, Matlab, Julia, Stata, and the command line. Users write statistical models in a high-level statistical language. The default Bayesian inference algorithm is the no-U-turn sampler (NUTS), an auto-tuned version of Hamiltonian […]
Sharon Stein Merkin and Mei-Hua Huang March 13, 12:00 PM – 1:00 PM 4240 Public Affairs Building This presentation outlines the general approach to identifying and accessing datasets for secondary data analyses related to health and aging. Within this framework, we will outline the services provided by the UCLA Older American Independence Center’s Data Access […]
Shelley Wiseman and Prof. Jennie Brand December 10, 11:00 AM – 12:00 PM 4240 Public Affairs Building When you are asked to talk about your research, many of the challenges are the same no matter who your audience and what your communications medium (PowerPoint or not). How to get and keep the audience on board. […]
Susan Newcomer, PhD NIH Extramural Program Staff October 23, 11:00 AM – 12:00 PM 4240 Public Affairs Building Co-sponsored with The Williams Institute This is an introduction to the culture of the US National Institutes of Health. I will talk about how the NIH functions, describe the process of an award from application to review […]
