# A person-in-context approach to student engagement in science (article in JRST)

Over the past few years, I have worked with Jennifer Schmidt and Patrick Beymer to explore student engagement in science using the Experience Sampling Method (ESM). Most recently, we used what scholars have referred to as a “person-in-context” approach, using both ESM and a person-oriented approach. A figure is helpful for conveying how the person-oriented approach can be used to …

More

# Feynman, Schwinger, and Psychometrics

Slate Star Codex has a new post entitled Against Individual IQ Worries. I write a lot about the importance of IQ research, and I try to debunk pseudoscientific claims that IQ “isn’t real” or “doesn’t matter” or “just shows how well you do on a test”. IQ is one of the best-studied ideas in psychology, one …

More

# The Vietnam War, Ken Burns and Lynn Novick

Ken Burns’ Vietnam documentary is incredibly good. Possibly the best documentary I’ve ever seen. It’s heartbreaking tragedy, with perspectives from all sides of the conflict: Americans and North and South Vietnamese, soldiers from both sides, war protestors, war planners, families of sons and daughters who died in the war. I was a child when the …

More

# Is there such a thing as “white hat” research ethics violations?

A couple of weeks ago, I posted about some of the ethical dilemmas involved in using public data for research, using an example of facial recognition researchers who used YouTube videos of people undergoing hormone replacement therapy to improve their algorithms’ ability to recognize faces from pre- and post-transition. Since reading that article, I’ve seen the occasional …

More

Advisors empower students to make life-altering decisions for themselves, armed with the best possible information. On Thursday, Sept. 21, 2017 I had the opportunity to speak at the first annual MSU Advisor Recognition Ceremony. Advising is a unique academic role on campus: in this role, advisors need to carefully balance giving students accurate and realistic …

More

# Minimizing a Median

$$\def\xorder#1{x_{\left(#1\right)}} \def\xset{\mathbb{X}} \def\xvec{\mathbf{x}}$$A somewhat odd (to me) question was asked on a forum recently. Assume that you have continuous variables $$x_{1},\dots,x_{N}$$ that are subject to some constraints. For simplicity, I’ll just write $$\xvec=(x_{1},\dots,x_{N})\in\xset$$. I’m going to assume that $$\xset$$ is compact, and so in particular the $$x_{i}$$ are bounded. The questioner wanted to …

More

# Some thoughts on starting year 5 (and French comics)

The image below, from the French comic book Carnets de thèse (“thesis notes”), has been on my mind as I begin my fifth year of grad school. I bought Carnets de thèse as a present for myself for my last birthday, expecting it to be an educational glimpse into the French grad school experience and …

More

# Accurate Genomic Prediction Of Human Height

I’ve been posting preprints on arXiv since its beginning ~25 years ago, and I like to share research results as soon as they are written up. Science functions best through open discussion of new results! After some internal discussion, my research group decided to post our new paper on genomic prediction of human height on …

More

# Pragmatism and the Cultivation of Digital Democracies

As technology enables us to communicate with one another in unpredictable ways that allow for an unprecedented public exchange of diverse ideas, cultivating the philosophical habits of an engaged fallibilistic pluralism gains in urgency. The emergence of the World Wide calls us to consider how an ethics of philosophy might enable us to cultivate practices …

More

# Phase Transitions and Genomic Prediction of Cognitive Ability

James Thompson (University College London) recently blogged about my prediction that with sample size of order a million genotypes|phenotypes, one could construct a good genomic predictor for cognitive ability and identify most of the associated common SNPs. The Hsu Boundary … The “Hsu boundary” is Steve Hsu’s estimate that a sample size of roughly 1 …

More

# Comparing MPLUS and MCLUST output

Introduction At present, MPlus is a widely-used tool to carry out Latent Profile Analysis, and there does not seem to be a widely-accepted or used way to carry out Latent Profile Analysis in R. This compares output from MPlus to output from the R package MCLUST, which is accessed through the package tidymixmod which I …

More

# “Helicopter parents produce bubble wrapped kids”

Heterodox Academy. In my opinion these are reasonable center-left (Haidt characterizes himself as “liberal left”) people whose views would have been completely acceptable on campus just 10 or 20 years ago. Today they are under attack for standing up for freedom of speech and diversity of thought. Tweet

# Public data and digital research ethics

The Verge recently posted an article that highlights some of the ethical dilemmas involved in collecting publicly-available data for research purposes. The article begins by describing the work of a researcher working on facial recognition of people before and after hormone replacement therapy: On YouTube, he found a treasure trove. Individuals undergoing HRT often document their progress …

More

# Varieties of Snowflakes

I was pleasantly surprised that New Yorker editor David Remnick and Berkeley law professor Melissa Murray continue to support the First Amendment, even if some of her students do not. Remnick gives Historian Mark Bray (author of Antifa: The Anti-Fascist Handbook) a tough time about the role of violence in political movements. After Charlottesville, the Limits …

More

# How to be an effective acting director, chair or dean — Part II (essay)

Last week, Inside Higher Ed published an essay of mine describing my experience as an interim dean. It covered several practical, task-oriented topics: identifying one’s core mission for the interim period, allaying colleagues’ fears, acquiring reliable information and triaging the issues that land in your inbox. But leading a college that includes a department of theater helped me recognize …

More

# BENEFICIAL AI 2017 (Asilomar meeting)

AI researcher Yoshua Bengio gives a nice overview of recent progress in Deep Learning, and provides some perspective on challenges that must be overcome to achieve AGI (i.e., human-level general intelligence). I agree with Bengio that the goal is farther than the recent wave of excitement might lead one to believe. There were many other …

More

# Using notebooks for beginning-of-semester planning

One of the first posts I published to this blog was a lament that I just couldn’t get notebooks to work for me. About a year ago, though, I finally found a routine that got notebooks working for me. I started off working my way through two copies of a Self Journal before borrowing some …

More

# DeepMind and StarCraft II Learning Environment

This Learning Environment will enable researchers to attack the problem of building an AI that plays StarCraft II at a high level. As observed in the video, this infrastructure development required significant investment of resources by DeepMind / Alphabet. Now, researchers in academia and elsewhere have a platform from which to explore an important class …

More

# Using MPlus from R with MPlusAutomation

According to the MPlus website, the R package MPlusAutomation serves three purposes: Creating related groups of models Running batches Extracting and tabulating model parameters and test statistics. Because modeling involves comparing related models, (partially) automating these is compelling. It can make it easier to use model results in subsequent analyses and can cut down on copy and pasting …

More