Joshua Claassen

@jclaass.bsky.social

PhD candidate at DZHW & @unihannover.bsky.social | web survey methodology & digital trace data

What if the biggest threat to your survey could also become your best testing tool? 🤔 @jclaass.bsky.social and @jkhoehne.bsky.social are ready to make the case - and show you how. 👉 t1p.de/GSS26-C8

GESIS Training@gesistraining.bsky.social · 4mo ago

Bots in web surveys - threat or opportunity? 🤖 In our #GESISsummerschool course, learn how bots operate, how to detect and prevent them, and even how to use them for pretesting, all while considering ethics and data integrity. Info & registration ➡️ t1p.de/GSS26-C8 #LLMs #websurveys @gesis.org

GESIS Summer School in Survey Methodology
Applied Introduction to Bots in Web-based Studies
10 to 14 August 2025 | Hybrid (Cologne & online)
Jan Karem Höhne & Joshua Claassen (both  University Hannover)

Don't forget to sign up! 🚨 Registration for our upcoming #CS3Meeting with @angelomoretti.bsky.social about small area estimation is open until Sunday (June 28). 👉 ww3.unipark.de/uc/cs3_meeti...

Joshua Claassen@jclaass.bsky.social · last mo.

📢 Registration now open! 📢 Join @angelomoretti.bsky.social for our next #CS3Meeting on June 29, 3:15 to 4:00 PM (CEST). Learn about #small #area #estimation and new data forms, such as satellite imagery, mobile phone records, and social media data. 🚨 Sign up here: ww3.unipark.de/uc/cs3_meeti...

🚨 Last chance to register for tomorrow's #CS3Meeting! 🚨 👉 Sign up to learn more about #APIs in #CSS with a particular focus on #reproducibility. Free registration is open until the end of today: ww3.unipark.de/uc/cs3_meeti...

Joshua Claassen@jclaass.bsky.social · 3mo ago

📢 Register now!! 📢 Join Johanna Hölzl for our next #CS3Meeting on May 19, 3:15 to 4:00 PM (CEST). Learn about the generalizability, reliability, and validity of #APIs (e.g., #YouTube @nytimes.com) and their implications for reproducibility in #CSS. 🚨 Sign up here: ww3.unipark.de/uc/cs3_meeti...

Sign up‼️ And learn from Johanna Hölzl about her outstanding research on API-based data⬇️

Joshua Claassen@jclaass.bsky.social · 3mo ago

📢 Register now!! 📢 Join Johanna Hölzl for our next #CS3Meeting on May 19, 3:15 to 4:00 PM (CEST). Learn about the generalizability, reliability, and validity of #APIs (e.g., #YouTube @nytimes.com) and their implications for reproducibility in #CSS. 🚨 Sign up here: ww3.unipark.de/uc/cs3_meeti...

📢📢 Last chance to sign up for the next #CS3Meeting 📢📢 Free registration is open until tomorrow evening 👉 ww3.unipark.de/uc/cs3_meeti...

Joshua Claassen@jclaass.bsky.social · 4mo ago

🚨 Upcoming #CS3Meeting 🚨 @jkhoehne.bsky.social talks about processing and analyzing audio data on April 22, 3:15 to 4:00 PM (CEST). Learn more about how to gain insights from audio files, automated transcriptions, and text-as-data methods! 🎙️🎧📊 Sign up now: ww3.unipark.de/uc/cs3_meeti...

📢 Our study (w @jessicakuhlm.bsky.social) on AfD success in integration council elections is now published in @pvs-journal.bsky.social 📖 doi.org/10.1007/s116... 👉Socioeconomic factors explain where the AfD runs, but not its success ❗Mainstream party competition is central to counter PRRP success

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Conrad Ziller@conradziller.bsky.social · 9mo ago

🗳️ New study (w @jessicakuhlm.bsky.social) on AfD success in integration council elections in North Rhine-Westphalia, Germany: AfD achieved significant results in councils elected exclusively by voters with migration backgrounds. It's not about economics—it's about political competition. (1/3)

Great paper @jclaass.bsky.social ‼️ Well done🤓😎 Check out our prediction models on @harvarddataverse.bsky.social for detecting bots in your web survey⬇️ doi.org/10.7910/DVN/...

Joshua Claassen@jclaass.bsky.social · 7mo ago

🚨 #Bots and #LLMs threaten the integrity of online surveys and public opinion research, but we can identify LLM-generated text in open narrative responses by fine-tuning #BERT. New #OpenAccess article with @jkhoehne.bsky.social @rubac.bsky.social @carohaensch.bsky.social. 👉 doi.org/10.1177/0894...