Simva, AKA Simple Validator, AKA SurveyManager is the evolution of a tool created to integrate and ease the task of validating serious games using pre-post surveys as a control point. This version allows to create more complex studies with more variety of activities and different allocations.
Simva Backend can be found here: https://github.com/e-ucm/simva
This is a simple frontend created with Express and JQuery to manage Simva without API calls. It has some additional functionality as random user creation in batch.