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Paul Ekman is a professor of psychology from UCSF who has research [1] and a training programme [2] in reading emotions from facial expressions. His programme includes tests.

[1] https://scholar.google.com/scholar?q=paul+ekman

[2] https://www.paulekman.com/micro-expressions-training-tools

There must be services that make a quiz like this trivial to build.

Something like SurveyMonkey or Google forms, but that lets the creator specify the right answers and gives person filling it in a score rather than saving answers to a data store.

For this application, you'd need to be able to upload a picture for each question.

Love the concept and potential impact of this. Any chance I could email you with a few questions to find out a bit more about your experiences & what you'd be looking for in such a tool? (If so, please ping me at samuel.jordan.dobbie@gmail.com).