https://yemretapan.com Last 10 notes on Y. Emre Tapan Quartz -- quartz.jzhao.xyz https://yemretapan.com/Research/Measurement-and-Validity/Polycrisis https://yemretapan.com/Research/Measurement-and-Validity/Polycrisis What Do Experts Mean by Polycrisis? In Prep Y. Emre Tapan · Sienna Mark · Samantha Holder · Daniel Hoyer · Rod Schoonover · Daniel P. Aldrich “Polycrisis” has gone from academic margins to the World Economic Forum in under two years, yet experts still disagree on what it means. Fri, 24 Jul 2026 12:18:06 GMT https://yemretapan.com/Research/Measurement-and-Validity/Validity https://yemretapan.com/Research/Measurement-and-Validity/Validity Testing whether scores carry the concept — including opening the instrument itself. Fri, 24 Jul 2026 12:18:06 GMT https://yemretapan.com/Research/Measurement-and-Validity/ https://yemretapan.com/Research/Measurement-and-Validity/ Every line of work on this site eventually arrives at the same question: does the instrument measure the construct it claims? This is where those arrivals meet — and where the measurement ... Fri, 24 Jul 2026 12:18:06 GMT https://yemretapan.com/Research/Networks-and-Statistics/Network-Shocks https://yemretapan.com/Research/Networks-and-Statistics/Network-Shocks How a network's governing mechanisms respond to shocks — impulse-response estimation for relational event models. Fri, 24 Jul 2026 12:18:06 GMT https://yemretapan.com/Research/Networks-and-Statistics/ https://yemretapan.com/Research/Networks-and-Statistics/ The second methodological line builds instruments for dynamic networks: models that let a network’s governing mechanisms move over time, and the econometric machinery to ask how ... Fri, 24 Jul 2026 12:18:06 GMT https://yemretapan.com/Research/Story https://yemretapan.com/Research/Story How the interests evolved — from economics and statistics through interpretation, text, and networks, to language models as both tool and object. Fri, 24 Jul 2026 12:18:06 GMT https://yemretapan.com/Research/ https://yemretapan.com/Research/ Two programs — the segregation of political life at three levels and two scopes, and the conceptualization, measurement, and validation of the instruments behind it. ... Fri, 24 Jul 2026 12:18:06 GMT https://yemretapan.com/Service/ https://yemretapan.com/Service/ Building the communities and programs computational social science needs — training institutes, workshop series, civic data consulting, and peer review. ... Fri, 24 Jul 2026 12:18:06 GMT https://yemretapan.com/Teaching/Philosophy https://yemretapan.com/Teaching/Philosophy Why we teach: data, tools, and theories are all models carrying assumptions — and what AI changes about teaching them. Fri, 24 Jul 2026 12:18:06 GMT https://yemretapan.com/Teaching/ https://yemretapan.com/Teaching/ The teaching record — eight course sections at Northeastern, two courses of my own in Istanbul, and the summer institutes and workshops I've led — with the philosophy behind it. ... Fri, 24 Jul 2026 12:18:06 GMT