Hello there, I will be applying to NPSIA for 2021 and I attended the info webinar they just had! According to the professor, the NPSIA program MA program can be done in one year but it is very unlikely as it would be a very intense workload, so not many people do finish in such little time. I am assuming by one semester you mean one year! If you do decide to go ahead and attempt to complete it in one year, I wish you good luck!