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LIONESS Lab: a free web-based platform for conducting interactive experiments online

Giamattei, Marcus; Yahosseini, Kyanoush Seyed; Gächter, Simon; Molleman, Lucas


Marcus Giamattei

Kyanoush Seyed Yahosseini

Professor, Psychology of Economic Decision Making

Lucas Molleman


LIONESS Lab is a free web-based platform for interactive online experiments. An intuitive, user-friendly graphical interface enables researchers to develop, test, and share experiments online, with minimal need for programming experience. LIONESS Lab provides solutions for the methodological challenges of interactive online experimentation, including ways to reduce waiting time, form groups on-the-fly, and deal with participant dropout. We highlight key features of the software, and show how it meets the challenges of conducting interactive experiments online.


Giamattei, M., Yahosseini, K. S., Gächter, S., & Molleman, L. (2020). LIONESS Lab: a free web-based platform for conducting interactive experiments online. Journal- Economic Science Association, 6, 95–111.

Journal Article Type Article
Acceptance Date Jun 6, 2020
Online Publication Date Jun 27, 2020
Publication Date Jun 27, 2020
Deposit Date Jun 29, 2020
Publicly Available Date Jun 29, 2020
Journal Journal of the Economic Science Association
Print ISSN 2199-6776
Electronic ISSN 2199-6784
Peer Reviewed Peer Reviewed
Volume 6
Pages 95–111
Public URL
Publisher URL
Additional Information Received: 25 March 2019; Revised: 28 May 2020; Accepted: 6 June 2020; First Online: 27 June 2020


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