The following information guides the pre-registration of this project. Each site also prepares their own CREP project and pre-registers before they collect data. The projects for these sites will be linked from [the main page][1]. **Abstract** Improving the generalizability of psychology findings to a culture requires sampling participants in that culture. Yet psychology studies rarely sample from African populations, even though it represents 17% of the overall world population. This study aimed to conduct an African-led replication study to test whether Rottman and Young’s “mere-trace” hypothesis of moral reasoning (that people are more sensitive to the dosage of harm-based transgressions than purity transgressions) extends to several African communities. We used a training method developed by the Collaborative Replication and Education Project (CREP) to support and train 23 African collaborators. During this process, we conducted a paradigmatic replication of Rottman’s and Young’s test of the mere trace hypothesis in Burkina Faso, Egypt, Kenya, Malawi, Morocco, Mozambique, Nigeria, Rwanda, South Africa, Tanzania, and Togo. [We did not find/We found] evidence for the main interaction effect (bdomain x dose = xxx) of transgression severity on the moral wrongness judgment of impure and harmful violations. [We did/ However, we did not] replicate Rottman and Young's findings among Africans. This project helped improve the research capacity of our participating African sites and will support other researchers in collaborating with African scholars. **Power analysis and Analysis plan** We conducted [an a priori simulated power analysis][2] to ensure our sample is sufficient to test the Rottman and Young (2019) claim across Africa. We determined that we require a minimum of 10 sites to sample at least 100 participants. Considering our exclusion criteria, we required an additional 15% (of 100 participants) per site. Hence, each site is expected to collect a total of 115 participants. We will collate and analyze at the coordinating lab. Our analysis script is available at [here][3]. **Registered Report manuscript** The current study has received in principle acceptance from AMPPS. Our rationale, method, procedure, and materials are in the Registered Report preprint https://osf.io/preprints/africarxiv/hxjbu/. **Ethics materials** The ethics procedure and application depend on existing laws and constituted institutions in the contributing sites’ countries. While some sites obtained approvals/certificates from local ethics boards, and research units, some provided exemption letters from their institutional research authorities. A total of 11 sites have received ethics approval to proceed with data collection. All ethics approvals are available at via [its component][4]. **Final notes** The logic behind the selection of the Rottman & Young study is available [here][5]. We [reanalyzed the data of the original project][6], coming up with a slightly different analysis approach. To ensure our collaborators are able to complete the project, we conducted [an infrastructure and resource assessment report][7]. As part of the project, we provided [training][8] to our collaborators, which includes instructions on how to [translate and culturally adapt the materials][9]. [1]: https://osf.io/kq9z5/ [2]: https://osf.io/ecvzm/ [3]: https://osf.io/4gjse [4]: https://osf.io/tjg9w/ [5]: https://osf.io/vwxu3/ [6]: https://osf.io/yxaf4/ [7]: https://osf.io/j64fs/ [8]: https://osf.io/b2pz6/ [9]: https://osf.io/wa7ed/