--- title: Team url: "https://www.zib.education/en/team/" date: 2022-06-07 modified: 2026-01-09 --- # Team On this page ZIB executive board --------------------- The ZIB executive board defines the strategy of the centre, decides on key research projects, and represents the ZIB in the scientific community as well as public sphere of educational policy. - ![Profilfoto Samuel Greiff](https://www.zib.education/_assets/processed/kwv8_7vkdYqltoNHXB-R7izk4v6Xmr55VkuVeJcmdi8/q:85/c:3158:3158:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1NhbXVlbF9HcmVpZmZfYzU1YzIyYzU3Nw:t/cb:2221d5df5a9d3c393334960fcd7d2a8288c40793/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL1NhbXVlbF9HcmVpZmYucG5n)© Fernanda Vilela### Prof. Dr. Samuel Greiff Chairman of the Board, Director and National Project Manager PISA | TUM [](mailto:samuel.greiff@tum.de) [ Show profile ](https://www.zib.education/en/team/prof-dr-samuel-greiff/) - ![[Translate to English:] Profilfoto Frank Goldhammer](https://www.zib.education/_assets/processed/MSZjMuzFtkV2HQr5xBup6Q-7YjUMrEj-Wg9w0ouzycI/q:85/c:1280:1280:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0ZyYW5rX0dvbGRoYW1tZXJfYjE5N2ZjMDU0Ng:t/cb:8a07c9483322e92be8ceb7e8a342b4c9cb75e13a/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvRElQRi9GcmFua19Hb2xkaGFtbWVyLnBuZw)### Prof. Dr. Frank Goldhammer Vice Chairman of the Board | DIPF [](mailto:f.goldhammer@dipf.de) [ Show profile ](https://www.zib.education/en/team/prof-dr-frank-goldhammer/) - ![Profilfoto Olaf Koeller](https://www.zib.education/_assets/processed/_t1NJ0qdFwcDhja7gjKZk6YrWr0GJw42pxu4RWCEBVY/q:85/c:204:204:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX29sYWZfa29lbGxlcl80ZTIxMjQ2NWUw:t/cb:e9c2f47ab81d0189dcdc745e82bcf4ee54421cd5/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvSVBOL29sYWZfa29lbGxlci5wbmc)### Prof. Dr. Olaf Köller Board Member | IPN [](mailto:koeller@leibniz-ipn.de) [ Show profile ](https://www.zib.education/en/team/prof-dr-olaf-koeller/) - ![Profilfoto Petra Stanat](https://www.zib.education/_assets/processed/Sf5b6drczykV3cWw6RqZierJ-DO8FwkHqE_ra4LBCmA/q:85/c:2063:2063:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1BldHJhX1N0YW5hdF8xNzljZDQ5MDIz:t/cb:cc7f7b6a3e78cf95bb056884b4db07eed6fc5dc7/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvSVFCL1BldHJhX1N0YW5hdC5wbmc)### Prof. Dr. Petra Stanat Board Member| IQB [](mailto:iqboffice@iqb.hu-berlin.de) [ Show profile ](https://www.zib.education/en/team/prof-dr-petra-stanat/) Direction of funding programmes and management ------------------------------------------------ Management implements the strategic guidelines set by the executive board, coordinates operational activities, and ensures the efficient execution of international comparative studies. - ![Profilfoto Tobias Saelzer](https://www.zib.education/_assets/processed/HsYx2FHP3CDhUloFgH1qOyk8e8ZqiisXGlPiPuIe68g/q:85/c:3974:3974:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1RvYmlhc19TYWVsemVyXzk3ZGE1ZWRkMDc:t/cb:47b5a93b23a3fa22009f4b78f7d24117ff6d3d43/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL1RvYmlhc19TYWVsemVyLnBuZw)© Andreas Heddergott### Tobias Sälzer Head of the Umbrella Project and Managing Director | TUM [](mailto:tobias.saelzer@tum.de) [ Show profile ](https://www.zib.education/en/team/tobias-saelzer/) Working group TUM/PISA (Munich) ------------------------------- The TUM/PISA (Munich) working group at ZIB coordinates the implementation and scientific analysis of the PISA surveyin Germany. It develops test concepts, evaluates data, and provides provides robust insights into and an international comparative perspective on educational research. ### Leadership - ![Profilfoto Samuel Greiff](https://www.zib.education/_assets/processed/kwv8_7vkdYqltoNHXB-R7izk4v6Xmr55VkuVeJcmdi8/q:85/c:3158:3158:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1NhbXVlbF9HcmVpZmZfYzU1YzIyYzU3Nw:t/cb:2221d5df5a9d3c393334960fcd7d2a8288c40793/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL1NhbXVlbF9HcmVpZmYucG5n)© Fernanda Vilela### Prof. Dr. Samuel Greiff Chairman of the Board, Director and National Project Manager PISA | TUM [](mailto:samuel.greiff@tum.de) [ Show profile ](https://www.zib.education/en/team/prof-dr-samuel-greiff/) - ![Profilfoto Jennifer Diedrich](https://www.zib.education/_assets/processed/-nl0XKBE1OxI76QO5QmXAc1-Ba85HwADXuTAp7ZbeLs/q:85/c:1920:1920:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0plbm5pZmVyX0RpZWRyaWNoXzU1NmE0MWJlMmE:t/cb:0109e30913988198c99f88687702990c34b8bc23/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL0plbm5pZmVyX0RpZWRyaWNoLnBuZw)© Fernanda Vilela### Dr. Jennifer Diedrich Deputy National Project Lead PISA | TUM [](mailto:jennifer.diedrich@tum.de) [ Show profile ](https://www.zib.education/en/team/dr-jennifer-diedrich/) - ![Profilfoto Lena Soeldner](https://www.zib.education/_assets/processed/6xvaUBfgHiKKcWBTb6EIFiWyE-Ct4ph95gmQNT5Fm-s/q:85/c:2000:2000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0xlbmFfU29lbGRuZXJfOThiODM5YTIxZA:t/cb:079a64b67d72f33b1fdda9dee25e1ded2ec96476/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL0xlbmFfU29lbGRuZXIucG5n)© Andreas Heddergott### Dr. Lena Söldner Interim National Team Lead & Research Associate | TUM [](mailto:lena.soeldner@tum.de) [ Show profile ](https://www.zib.education/en/team/prof-dr-samuel-greiff-1/) ### Project administration - ![Profilfoto Annika Hoffmann](https://www.zib.education/_assets/processed/BhKLyJD8gwSjErpkTRHLQo2BT7X8HLVNrRxrCiGbGxQ/q:85/c:2000:2000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0FubmlrYV9Ib2ZmbWFubl8zYTJmMzE1NjM4:t/cb:13c2dc600e38f5d3246a3316ceb11e12fa668727/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL0FubmlrYV9Ib2ZmbWFubi5wbmc)© Andreas Heddergott### Annika Hoffmann Secretariat and Administration | TUM [](mailto:annika.hoffmann@tum.de) [ Show profile ](https://www.zib.education/en/team/dr-jennifer-diedrich-1/) - ![Profilfoto Elisabeth Gonzales](https://www.zib.education/_assets/processed/0BlpV7OBKfvlautV5_pvzWG5D2Q4mhq4CHhy80CtsLQ/q:85/c:1200:1200:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0VsaXNhYmV0aF9Hb256YWxlc19iYmE3MmY2OTdh:t/cb:606fe77105adeb58db25172f0671f08b1efdb554/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL0VsaXNhYmV0aF9Hb256YWxlcy5wbmc)© Fernanda Vilela### Elisabeth González Rodríguez Project Administration, General Management, and International Communication | TUM [](mailto:elisabeth.gonzalez@tum.de) [ Show profile ](https://www.zib.education/en/team/elisabeth-gonzalez-rodriguez/) ### Science communication - ![Profilfoto Jacqueline Kluge](https://www.zib.education/_assets/processed/yGuWPCg4MFym7jUpXNtopm19Sy3WhJ0611VXcvHHx-g/q:85/c:967:967:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0phY3F1ZWxpbmVfS2x1Z2VfY2IwOTcwMGI3NQ:t/cb:532dfc3700181367cb670c3ef3f8b51905323de0/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL0phY3F1ZWxpbmVfS2x1Z2UucG5n)\[Translate to English:\] Foto: Studioline© Foto: Studioline### Jacqueline Kluge Research Associate | TUM [](mailto:jacqueline.kluge@tum.de) [ Show profile ](https://www.zib.education/en/team/jacqueline-kluge/) - ![Profile Picture of Sophie Sessler](https://www.zib.education/_assets/processed/Mbf8gxiuezWj3xY3l5RXCXStAbKGBsBbEcnpOKyPmRg/q:85/c:1000:1000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1NvcGhpZV9TZXNzbGVyXzBjYTg2MzUzMGM:t/cb:5ed2aec199f46af65dece3e5ce7150d1ef314bb5/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL1NvcGhpZV9TZXNzbGVyLmpwZWc "sophie_sessler_credits_Fernanda_Vilela.jpeg")© Fernanda Vilela### Sophie Seßler Research Associate | TUM [](mailto:sophie.sessler@tum.de) [ Show profile ](https://www.zib.education/en/team/sophie-sessler/) - ![[Translate to English:] Profilbild Verena Moeller](https://www.zib.education/_assets/processed/wgyRxIxTUQlomIPHfpGYRZayISB5de1B4s_vKs7KQr8/q:85/c:996:996:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1ZlcmVuYV9Nb2VsbGVyXzhmODJjM2JiZjE:t/cb:d763451db8f6751796b9b86edc059479486a8291/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL1ZlcmVuYV9Nb2VsbGVyLnBuZw)\[Translate to English:\] Foto: Kristijan Matic© Kristijan Matic### Dr. Verena Möller Research Associate | TUM [](mailto:v.moeller@tum.de) [ Show profile ](https://www.zib.education/en/team/dr-verena-moeller/) - ![profile picture Maria Muster](https://www.zib.education/_assets/processed/xxFLQ_hZNUVTjz4NPfM0eW2NoV-FLou-IWOAiwgrZ2I/q:85/c:1273:1273:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX01hcmlhX011c3Rlcl9iNTk1MjA5ZjA5:t/cb:548302856a3bea1afef42aed97ad3bdfef3f484a/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL01hcmlhX011c3Rlci5wbmc)© Christoph Ascher### Dr. Maria Katharina Muster Research Associate | TUM [](mailto:maria.muster@tum.de) [ Show profile ](https://www.zib.education/en/team/dr-maria-katharina-muster/) ### Data management - ![Profilfoto Lisa Teufele](https://www.zib.education/_assets/processed/kLCB-oGSLK0fsWH5x1KaeAEyhXPLFYL2_pgceFXksE0/q:85/c:2000:2000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0xpc2FfVGV1ZmVsZV8zMDdjZmM1NDI1:t/cb:4f8408e296ff238adc70cd7e4821b403cd7188e0/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL0xpc2FfVGV1ZmVsZS5wbmc)© Andreas Heddergott### Dr. Lisa Teufele Research Associate | TUM [](mailto:lisa.teufele@tum.de) [ Show profile ](https://www.zib.education/en/team/dr-lisa-teufele/) - ![Profile picture Philipp Sterner](https://www.zib.education/_assets/processed/QL00vqFfq7aviG4Ad0EjQ-pcNSjCFRxFXz7svSzvzgg/q:85/c:1280:1280:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1BoaWxpcHBfU3Rlcm5lcl8wMl85NzdlNzZiMzg3:t/cb:4c4e1673379b935208496063f9637aaed96e2517/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL1BoaWxpcHBfU3Rlcm5lcl8wMi5wbmc)### Dr. Philipp Sterner Reserach Associate (data management) | TUM [](mailto:phillipp.sterner@tum.de) [ Show profile ](https://www.zib.education/en/team/dr-philipp-sterner/) ### Research associates - ![Profilfoto Ainhoa Gonzalez Uriarte](https://www.zib.education/_assets/processed/yhmMe1i2ZzETQFCyhNWWds2oXlWkYIaDlTQML9C9Wgs/q:85/c:627.28635682159:627.28635682159:fp:0.4925:0.60644677661169/rt:force/w:188/h:188/fn:Y3NtX0FpbmhvYV9Hb256YWxlel9VcmlhcnRlXzJlM2M1YmY4NDU:t/cb:42f70596c62f0c08515f9a2918fb9d105786a47a/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL0FpbmhvYV9Hb256YWxlel9VcmlhcnRlLnBuZw)### Ainhoa González Uriarte Research Associate | TUM [](mailto:ainhoa.gonzalez-uriarte@tum.de) [ Show profile ](https://www.zib.education/en/team/ainhoa-gonzalez-uriarte/) - ![Profilfoto Amory Danek](https://www.zib.education/_assets/processed/WMNvhvhyzGF2YvFxX9vqNY_b67yJtI_ueFyMvBcs1AA/q:85/c:2000:2000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0Ftb3J5X0RhbmVrXzQzMDNiMmFmYjQ:t/cb:4e90d4f2174aa92879f343d6ddde63ef9d5fd34b/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL0Ftb3J5X0RhbmVrLnBuZw)© Andreas Heddergott### PD Dr. Amory Danek Research Associate | TUM [](mailto:amory.danek@tum.de) [ Show profile ](https://www.zib.education/en/team/dr-jennifer-diedrich-2/) - ![Profilfoto Ana Tupac-Baier](https://www.zib.education/_assets/processed/G0jDUJFvjfHexHZM1jChRLBgVbHm-rjSAS57NbldoCg/q:85/c:2000:2000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0FuYV9UdXBhY18xYzY0ZjEwZGYz:t/cb:1cf1ca4accad1b20856e609b27e1387d3e71ad24/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL0FuYV9UdXBhYy5wbmc)© Andreas Heddergott### Ana Tupac-Baier Research Associate | TUM [](mailto:ana.tupac@tum.de) [ Show profile ](https://www.zib.education/en/team/ana-tupac-baier/) - ![Profilfoto Maren Mueller](https://www.zib.education/_assets/processed/gjA-_l6FulMgs9oCcrdgTNfIO5voT3KXrfFIvTzvHbE/q:85/c:2000:2000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX01hcmVuX011ZWxsZXJfNzk0YjI2MTM3Ng:t/cb:368e86ba6fded1975954bfa0682e7186916a0e4d/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL01hcmVuX011ZWxsZXIucG5n)© Andreas Heddergott### Maren Müller Research Associate | TUM [](mailto:mar.mueller@tum.de) [ Show profile ](https://www.zib.education/en/team/maren-mueller/) - ![Profile picture Martina Heinle](https://www.zib.education/_assets/processed/hEROK5y8P9ipJTVXcM3Zi1zjIRCPvTy0twDBeygW-hk/q:85/c:4000:4000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX01hcnRpbmFfSGVpbmxlX2M2NjA3OGM4YjA:t/cb:e641a33a985ce858cb76a7dfbd7b726b1c07c0ca/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL01hcnRpbmFfSGVpbmxlLnBuZw)© Fernanda Vilela### Martina Heinle Research Associate | TUM [](mailto:martina.heinle@tum.de) [ Show profile ](https://www.zib.education/en/team/martina-heinle-2/) - ![Profilfoto Tamara Kastorff](https://www.zib.education/_assets/processed/4Zbm7brqkReig3-di2x-UfQntM1wU2DPkrIfNljaSls/q:85/c:600:600:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1RhbWFyYV9LYXN0b3JmZl8zZTk5OGJiMjk2:t/cb:444a5de1608647a055d7cb6b2b216eb2f815d26b/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL1RhbWFyYV9LYXN0b3JmZi5qcGVn)© Fernanda Vilela### Dr. Tamara Kastorff Research Associate | TUM [](mailto:tamara.kastorff@tum.de) [ Show profile ](https://www.zib.education/en/team/dr-tamara-kastorff/) - ![profile picture of Sittipan Yotyodying](https://www.zib.education/_assets/processed/1oJEJJxVvQblx5bpfPgtLNSIfCh6wXYB0Bv61zjh3H0/q:85/c:502:502:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1NpdHRpcGFuX1lvdHlvZHlpbmdfMTk2MWNmZTk5Nw:t/cb:3310d2cf03e34963901f4ab1f398b1702db5115d/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL1NpdHRpcGFuX1lvdHlvZHlpbmcuanBlZw)### PD Dr. Sittipan Yotyodying Research Associate | TUM [](mailto:sittipan.yotyodying@tum.de) [ Show profile ](https://www.zib.education/en/team/pd-dr-sittipan-yotyodying/) - ![Profilfoto Henrike Elmers](https://www.zib.education/_assets/processed/v-wpHwqQ-sOVDGJo861q8z-BCsFBUJh2YM39XmKiNpc/q:85/c:2000:2000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0hlbnJpa2VfRWxtZXJzXzQ5YTc2Yzg0Zjg:t/cb:f362f8d596938c584154e842cd08b3d8bbb6820f/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvVFVNL0hlbnJpa2VfRWxtZXJzLnBuZw)© Andreas Heddergott### Henrike Elmers Research Associate | TUM [](mailto:henrike.elmers@tum.de) [ Show profile ](https://www.zib.education/en/team/henrike-elmers/) Working group DIPF (Frankfurt) ------------------------------ The DIPF working group at ZIB focuses on methodological development and quality assurance for international comparative studies. It analyzes educational data, develops survey instruments, and supports the scientific interpretation of results. - ![[Translate to English:] Profilfoto Frank Goldhammer](https://www.zib.education/_assets/processed/MSZjMuzFtkV2HQr5xBup6Q-7YjUMrEj-Wg9w0ouzycI/q:85/c:1280:1280:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0ZyYW5rX0dvbGRoYW1tZXJfYjE5N2ZjMDU0Ng:t/cb:8a07c9483322e92be8ceb7e8a342b4c9cb75e13a/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvRElQRi9GcmFua19Hb2xkaGFtbWVyLnBuZw)### Prof. Dr. Frank Goldhammer Vice Chairman of the Board | DIPF [](mailto:f.goldhammer@dipf.de) [ Show profile ](https://www.zib.education/en/team/prof-dr-frank-goldhammer/) - ![[Translate to English:] Profilbild Astrid Henkel](https://www.zib.education/_assets/processed/7-X9Xi9YUXsCnwg4Vyb8vdH_LLZ_RLP0_fTx_crbEi0/q:85/c:1280:1280:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0FzdHJpZF9IZW5rZWxfZmFlZTM4MDc2ZQ:t/cb:bfde154e2688f5a65b9704db0de160022ad3ec33/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvRElQRi9Bc3RyaWRfSGVua2VsLnBuZw)### Astrid Henkel Project Assistant | DIPF [](mailto:a.henkel@dipf.de) [ Show profile ](https://www.zib.education/en/team/astrid-henkel/) - ![[Translate to English:] Profilbild Leonard Tetzlaff](https://www.zib.education/_assets/processed/WWOEV_NbLifa_3o99SpRnysJgHYrK7xLcWIfdD-DbNE/q:85/c:1280:1280:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0xlb25hcmRfVGV0emxhZmZfOTYwNmQ5MTMxNA:t/cb:dbaf5dea0581dca61e8fbbb146b29560a249c296/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvRElQRi9MZW9uYXJkX1RldHpsYWZmLnBuZw)### Dr. Leonard Tetzlaff Research Associate | DIPF [](mailto:l.tetzlaff@dipf.de) [ Show profile ](https://www.zib.education/en/team/dr-leonard-tetzlaff/) - ![](https://www.zib.education/_assets/processed/kVXMpWmJXNCqCCZ7Y4KG-AYeqS1TkJzYexHQ2v2ZlVY/q:85/c:533:533:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX0hlbGVuYV9GZWxkaGVnZV9kMGRkNzBhMzMz:t/cb:1123c437a376b4652fd1effc173ff7770bbfbeb2/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvRElQRi9IZWxlbmFfRmVsZGhlZ2UucG5n)### Helena Feldhege Wissenschaftlicher Mitarbeiter | DIPF [](mailto:h.feldhege@dipf.de) [ Show profile ](https://www.zib.education/en/team/helena-feldhege/) Working group IPN (Kiel) ------------------------ The IPN working group at ZIB focuses on content design and test development in international comparative studies. It researches competence measurements in STEM subjects, analyzes educational data, and contributes to the further development of empirical educational research. - ![Profilfoto Olaf Koeller](https://www.zib.education/_assets/processed/_t1NJ0qdFwcDhja7gjKZk6YrWr0GJw42pxu4RWCEBVY/q:85/c:204:204:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX29sYWZfa29lbGxlcl80ZTIxMjQ2NWUw:t/cb:e9c2f47ab81d0189dcdc745e82bcf4ee54421cd5/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvSVBOL29sYWZfa29lbGxlci5wbmc)### Prof. Dr. Olaf Köller Board Member | IPN [](mailto:koeller@leibniz-ipn.de) [ Show profile ](https://www.zib.education/en/team/prof-dr-olaf-koeller/) - ![](https://www.zib.education/_assets/processed/Pkud0uVZOJLc9rCc-NqtEkpCthl_VSW2rLAPEaOccAk/q:85/c:1000:1000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1BvcnRyYWl0X0ljb25fMTZkMGMxN2FhZg:t/cb:6297255890b5326da11b694896e974e853238fb5/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvUG9ydHJhaXRfSWNvbi5wbmc)### Prof. Dr. Oliver Lüdtke ZIB-Professor | IPN [](mailto:oluedtke@leibniz-ipn.de) [ Show profile ](https://www.zib.education/en/team/prof-dr-oliver-luedtke/) - ![](https://www.zib.education/_assets/processed/Pkud0uVZOJLc9rCc-NqtEkpCthl_VSW2rLAPEaOccAk/q:85/c:1000:1000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1BvcnRyYWl0X0ljb25fMTZkMGMxN2FhZg:t/cb:6297255890b5326da11b694896e974e853238fb5/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvUG9ydHJhaXRfSWNvbi5wbmc)### Dr. Alexander Robitzsch Research Associate | IPN [](mailto:robitzsch@leibniz-ipn.de) [ Show profile ](https://www.zib.education/en/team/dr-alexander-robitzsch/) - ![](https://www.zib.education/_assets/processed/Pkud0uVZOJLc9rCc-NqtEkpCthl_VSW2rLAPEaOccAk/q:85/c:1000:1000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1BvcnRyYWl0X0ljb25fMTZkMGMxN2FhZg:t/cb:6297255890b5326da11b694896e974e853238fb5/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvUG9ydHJhaXRfSWNvbi5wbmc)### Oskar Engels Research Associate | IPN [](mailto:engels@leibniz-ipn.de) [ Show profile ](https://www.zib.education/en/team/oskar-engels/) Working group FDZ at IQB (Berlin) --------------------------------- The FDZ working group manages the research data center, which processes and provides educational data from international comparative studies. It ensures access to high-quality data for scientific research and supports its analysis. - ![Profilfoto Petra Stanat](https://www.zib.education/_assets/processed/Sf5b6drczykV3cWw6RqZierJ-DO8FwkHqE_ra4LBCmA/q:85/c:2063:2063:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1BldHJhX1N0YW5hdF8xNzljZDQ5MDIz:t/cb:cc7f7b6a3e78cf95bb056884b4db07eed6fc5dc7/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvSVFCL1BldHJhX1N0YW5hdC5wbmc)### Prof. Dr. Petra Stanat Board Member| IQB [](mailto:iqboffice@iqb.hu-berlin.de) [ Show profile ](https://www.zib.education/en/team/prof-dr-petra-stanat/) - ![[Translate to English:] Profilfoto Aleksander Kocaj](https://www.zib.education/_assets/processed/lZhwGd8_8kEPP8raudiUSNW7RDOG_7Kr1qns5-gQyjo/q:85/c:282.34710743802:282.34710743802:fp:0.49857954545455:0.48347107438017/rt:force/w:188/h:188/fn:Y3NtX0FsZWtzYW5kZXJfS29jYWpfYzIwNzc4NTdlZQ:t/cb:f1060b65d9ffec0194937161cc46a9e4a6f0eda3/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvSVFCL0FsZWtzYW5kZXJfS29jYWoucG5n)### Dr. Aleksander Kocaj Head of Research Data Center | FDZ [](mailto:a.kocaj@iqb.hu-berlin.de) [ Show profile ](https://www.zib.education/en/team/dr-aleksander-kocaj/) - ![](https://www.zib.education/_assets/processed/Pkud0uVZOJLc9rCc-NqtEkpCthl_VSW2rLAPEaOccAk/q:85/c:1000:1000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1BvcnRyYWl0X0ljb25fMTZkMGMxN2FhZg:t/cb:6297255890b5326da11b694896e974e853238fb5/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvUG9ydHJhaXRfSWNvbi5wbmc)### Dr. Benjamin Becker Research Associate | FDZ [](mailto:b.becker@iqb.hu-berlin.de) [ Show profile ](https://www.zib.education/en/team/dr-benjamin-becker/) - ![](https://www.zib.education/_assets/processed/Pkud0uVZOJLc9rCc-NqtEkpCthl_VSW2rLAPEaOccAk/q:85/c:1000:1000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1BvcnRyYWl0X0ljb25fMTZkMGMxN2FhZg:t/cb:6297255890b5326da11b694896e974e853238fb5/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvUG9ydHJhaXRfSWNvbi5wbmc)### Dr. Janine Buchholz Research Associate | FDZ [](mailto:janine.buchholz@iqb.hu-berlin.de) [ Show profile ](https://www.zib.education/en/team/dr-janine-buchholz/) - ![[Translate to English:] Profilfoto Monika Lacher](https://www.zib.education/_assets/processed/2uIKST8REDrRAtbxhducf8NFhNxOmbWRv0MytPBrFPM/q:85/c:313:313:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX01vbmlrYV9MYWNoZXJfZDkyZmI2OTc1NQ:t/cb:1d1e23bd00c221b26166dda87710cc9f7e3e0731/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvSVFCL01vbmlrYV9MYWNoZXIucG5n)### Monika Lacher Management Assistant | FDZ [](mailto:monika.lacher@iqb.hu-berlin.de) [ Show profile ](https://www.zib.education/en/team/monika-lacher/) - ![[Translate to English:] Profilfoto Nikolas Weigt](https://www.zib.education/_assets/processed/vIwo8UsfnkLN2i5vIr_wMp9wYMsmiIsA5G2RUFXZKIE/q:85/c:292.98347107438:292.98347107438:fp:0.50142045454545:0.48347107438017/rt:force/w:188/h:188/fn:Y3NtX05pa29sYXNfV2VpZ3RfMGQ5Yzc5ZTg5NQ:t/cb:c96485ce5ebbe062d82dfb94c08b7f81eb62b599/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvSVFCL05pa29sYXNfV2VpZ3QucG5n)### Nikolas Weigt Research Associate | FDZ [](mailto:nikolas.daniel.weigt.1@iqb.hu-berlin.de) [ Show profile ](https://www.zib.education/en/team/nikolas-weigt/) - ![](https://www.zib.education/_assets/processed/Pkud0uVZOJLc9rCc-NqtEkpCthl_VSW2rLAPEaOccAk/q:85/c:1000:1000:fp:0.5:0.5/rt:force/w:188/h:188/fn:Y3NtX1BvcnRyYWl0X0ljb25fMTZkMGMxN2FhZg:t/cb:6297255890b5326da11b694896e974e853238fb5/bG9jYWw6L2ZpbGVhZG1pbi9CaWxkZXIvTWl0YXJiZWl0ZXIvUG9ydHJhaXRfSWNvbi5wbmc)### Ralf Seifert Technology and User Support | FDZ [](mailto:ralf.seifert@iqb.hu-berlin.de) [ Show profile ](https://www.zib.education/en/team/ralf-seifert/)