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. 2024 Jan 25;44(1):8. doi: 10.1007/s13593-023-00937-1

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — Overview of the tricot trial design and implementation. (A) Trials are designed on ClimMob (https://climmob.net/) following a trial protocol derived from the target product profile. (B) Technology options (varieties, breeding lines, etc.) are selected based on the aims of the experiment. (C) Sets of three technology options are randomly assigned to a trial package as incomplete blocks of three following an A-optimal design. (D) Field agents distribute the trial packages and register participants’ identifiable data (name, age, village, district, GPS) using Open Data Kit. (E) Participants establish the experiment in their own farm and assess a list of traits as per trial protocol (e.g., drought tolerance, yield) using “tricot rankings” by indicating the option with best performance (1st in the ranking) and the option with worst performance (3rd in the ranking) for the given trait. The 2nd place in the ranking is added to the option not mentioned as best or worst for the given trait. (F) Participants’ assessments are registered using Open Data Kit, sent to ClimMob, and aggregated for data analysis and production of automated reports. In consumer and market testing, step “(E)” is not considered and participants’ assessments are recorded at registration.