Nick Byrd, Ph.D.

@byrdnick.com

I study how to improve decisions and well-being at @GeisingerCollege.bsky.social. 🎓 gScholar: shorturl.at/uBDPW ▶️ youtube.com/@ByrdNick 👨‍💻 psychologytoday.com/us/blog/upon-reflection 📓 byrdnick.com/blog 🎙️ byrdnick.com/pod

Sobering: initial trials with huge effect, large follow-up trial showing no evidence for an effect. But practice is already locked in and criticism is defused by pointing to random effects meta-analyses which are necessarily dominated by the initial trials. polypharmacy.substack.com/p/we-should-...

We should stop running clinical trials that cannot change practice

The case of prazosin for PTSD nightmares and the PACT trial

polypharmacy.substack.com

The book title 'Thinking Fast and Slow' may make you expect more careful, rational responses to take longer. Yet another paper finds the reflective thinking is not necessarily slower (or even less efficient) — this time in a sample of over 60,000 choices: doi.org/10.3390/bs16...

"An analysis of decision times in choices did not support the hypothesis that response times increase with individuals’ tendency for cognitive reflection (r = −0.03, p = 0.68). A regression analysis controlling for intelligence revealed an unexpected suppression effect, contrary to H2. Specifically, decision times increased with intelligence (beta = 0.39, t(244) = 5.02, p < 0.001) but decreased with increasing cognitive reflection (beta = −0.24, t(244) = 3.15, p = 0.002)."