GUESS THE
REPLICATION
Can you predict which scientific studies replicate?
Player Profile
1. The first two letters of your city of birth (e.g. 'Am' for 'Amsterdam')
2. The last two letters of your father's first name (e.g. 'in' for 'Martin')
3. The last two digits of your birth year (e.g. '93' for '1993')
4. The day of the month you were born (e.g. '02' for the 2nd of June)
About You
Please answer these questions before playing for the first time.
How to Play
In this game, we present you the title and abstract of a study that has been replicated. That means, after the study you are reading about has been published, a group of researchers has tested the same claim again. Your task is to guess the outcome of the replication based on only the information you have.
About the Game
Research is about truth and truth should be findable by everyone. One way to do this is to test again what others have claimed, that is, to replicate. In social science research, replications are often neglected, which is why we created this game: Our aim is for you to learn about replications in a fun and educational way.
The game uses an excerpt from the FORRT Library of Reproduction and Replication Attempts - the world's largest study-based database of replications. Note that about one third of replications in the full database show mixed results, but these are excluded from this game for simplicity. Also, a single study may appear multiple times if it has been replicated by multiple independent groups. Finally, just because a replication failed, it does not automatically mean that the original study cannot be trusted. And just because it succeeded, it does not mean that the original study was definitely right. Things are complicated, welcome to the world of research!
Data Sharing
Gameplay data (guesses, reaction times) will be shared openly for research purposes, attached only to the nickname you provide. We use this game to learn more about how people predict replication outcomes.
Credits
- This game was developed by Lukas and Jessica Röseler with the help of Gemini 3.1 pro preview. The authorship order was determined by who got a higher score in the game.
- Gameplay is strongly inspired by GuessTheCorrelation.
- The dataset is provided by a large community of scholars maintaining the Framework for Open and Reproducible Research Training: FLoRA Database.
- Journal Impact Factors are displayed neutrally to test prediction strategies and are fetched via OpenAlex (based on 2-year mean citedness).
Röseler, L., & Röseler, J. (2026). Guess the replication [Computer game]. Retrieved from https://lukasroeseler.github.io/GuessTheReplication/
This project is part of the FORRT Open Research Games.
Questions, feedback, criticism? Write us an email at lukas.roeseler [at] uni-muenster.de.
Data Quality Check
Note that this will not affect your potential position on the leaderboard and you will still get a certificate. However, we will remove this round of yours from the data analysis that is part of a research report.
Quote from the replication authors:
LEVEL UP!
+1 LIFE AWARDED! ❤️
Maximum Rank Achieved!
GUESS THE REPLICATION
CERTIFICATE OF ACHIEVEMENT
predicted out of replication outcomes correctly and achieved the rank:
Want to learn more?
Never miss a replication with the Zotero Replication CheckerLearn how to conduct a replication with our free Handbook
Get to know high-quality, non-commercial academic journals that specialise on replications
Get involved and become one of over 600 contributors at FORRT
Leaderboard (Top 10)
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