The current report gives an overview of methodologies and measurements explored, and provides guidelines including functionality, feasibility and reliability of each method for the assessment of training initiatives and interventions in REI (research ethics and integrity). The goal of the exploration was to evaluate the measurement tools used in REI training in the past two decades, and pinpoint feasible methods for measuring effectiveness of training. While the deliverable was originally geared towards measurement of training effects in research integrity training, we have also included research ethics training, as these have sometimes been closely intertwined, and in some languages research ethics as a concept also covers integrity and these may not be strictly separated in training contents.