Cognitive Science | Nick Byrd, Ph.D.

5 Ways To Overcome Junk Data From mTurk (and online surveys more generally)

The data quality on Amazon Mechanical Turk (mTurk) has suffered for years now (Byrd, 2023; Chandler & Paolacci, 2017; Moss & Litman, 2018; Chmielewski & Kucker, 2019; Ahler et al., 2020; Kennedy et al., 2020; MacInnis et al., 2020). There are a few ways to protect online survey data quality. In this post, I will briefly cover five strategies for weeding out junk data in online research (not just via mTurk), from easiest to hardest.

New paper: “Your Health vs. My Liberty”

Why did otherwise life affirming people flout public health recommendations during the COVID-19 pandemic?

Was it leaders’ messaging? For example, are “flatten the curve” graphs about statistical victims less effective than information about identifiable victims?
Was it people’s reasoning? Do some people not think carefully enough about public health? Might people who better at math better understand public health information involving concepts like exponential growth and probability?
Was it people’s philosophical preferences? Do some people just care more about preventing harm? Do others prioritize personal liberty over pubic health? Do people’s beliefs about science matter? Religion?

Michał Białek and I investigated. In short, we found that flouting public health recommendations was less about messaging or reasoning than philosophical beliefs, especially beliefs about our duties to others, liberty, and science. The paper is ~~under review~~ now published in Cognition. As always, you can find a free copy of the paper on my CV at byrdnick.com/cv. More details below.

New Jobs, New Projects, & What’s Next

I’m lucky to share updates about new jobs, new projects, and what’s happening next on the blog, the podcast, and the YouTube channel. I’ll explain below.

Anders Ericsson (1947-2020)

My colleagues and I are deeply saddened about the unexpected passing of Anders Ericsson on June 17. Dr. Ericsson was not only a massive figure in psychology, philosophy, performance, and beyond but—in my experience—an outstanding person.

Standout Memories

There is much to say about Anders. I can speak only to the past few years—and only a slice of it. Nonetheless, that slice of Anders is rich. Indulge me in just three stories.

New Talk: Great Minds Do Not Think Alike

I’ll be presenting new data from a pre-registered replication at some conferences in the next few months. The study replicated findings that those with a Ph.D. in philosophy are more reflective, that less reflective philosophers tended towards certain philosophical views, and that some of these reflection-philosophy correlations are partly confoudned with culture, education, gender, or personality.

March 2022 update: these data are in a paper that was accepted by Review of Philosophy & Psychology.

The meaning of ‘statistical significance’ and of p-values

A 2019 paper in the Advances in Methods and Practices in Psychological Science found that most psychology textbooks, instructors, and students misinterpret ‘statistical significance’ and p-values. Talk about a headline! More important than the headline, however, are the right interpretations and what we can do to correct widespread misinterpretations. In this post, I explain the authors’ findings and the three solutions they propose.

A Dissertation About Reflective Reasoning in Philosophy, Morality, & Bias

One of the things that I worked on in 2018 was a dissertation about the roles of reflective reasoning in philosophy, morality, and bias. Pending a follow-up study for one chapter, every chapter is written and has enjoyed at least one round of comments—and some of the chapters are under review. As the chapters find homes in journals, I will be sure to post preprints and links to the online publication on my blog and in my social media feeds. So, ya know, follow those if you want more updates. In this post, I’ll give you drafts of the abstracts for each chapter, so that you can get a birds-eye view of the dissertation project.†

[Update: audio and video of the introduction to the dissertation defense is now available.]

Continue reading A Dissertation About Reflective Reasoning in Philosophy, Morality, & Bias

Multi-disciplinary Philosophy PhD Programs

One of my favorite researchers is Chandra Sripada. Sripada is a professor of both philosophy and psychiatry. My research also crosses the humanities-science divide(s). So, I often wonder how to replicate a multi-disciplinary career like Sripada’s. A look at Sripada’s CV reveals a career path involving multiple advanced degrees, internships/residencies, etc. If you are like me, then you (or your partner) might want a more efficient path to a career. In this post, I share advice about how to obtain multi-disciplinary training from philosophy graduate programs. Continue reading Multi-disciplinary Philosophy PhD Programs

On Inferring Mechanisms In Cognitive Science

One of the things that cognitive scientists do is look for, identify, and describe mechanisms. For example, cognitive scientists are interested in our ability (or proclivity) to ascribe mental states to others things and creatures. So, some posit a “theory of mind” mechanism. But, intuitively, there will not be a mechanism for every one of our abilities or behaviors. For example, it would be surprising if there were mechanism for driving a car. But if that is right, then we need principled reasons to think so. Or, at the very least, we need a story about why some of our abilities have mechanisms and others don’t. In this post, I’ll briefly consider four such stories. One of the take-aways will be that it is not obvious why some abilities (like driving a car) do not have mechanisms. Another take-away will be that it is not obvious what scientists mean by ‘mechanism’. Continue reading On Inferring Mechanisms In Cognitive Science

Standout Memories

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