**Purpose of this page**
This OSF project page describes our procedures as part of the *Perspectives on Psychological Science* Registered Replication Report of the following study:
- Rand, D. G., Greene, J. D., & Nowak, M. A. (2012) Spontaneous giving and calculated greed. Nature, 489, 427–430.
Please consult the official [protocol][1] and [RRR project page][2] for details of the experiment's methodology, all of the materials necessary for the project, and detailed instructions.
This project page describes our implementation of this protocol, with details provided in the Implementation component.
**Contributors**
- Susann Fiedler, Max Planck Institute for Research on Collective Goods
- Rima-Maria Rahal, Max Planck Institute for Research on Collective Goods, University of Amsterdam
- Minou Ghaffari, Max Planck Institute for Research on Collective Goods
[1]: https://osf.io/ypd78/
[2]: https://osf.io/scu2f/
