From
https://wiki.project1999.com/Skill_Research:
What is the skill cap?
Research is a level restricted skill. As such, your max skill is: (Level - 15) x 5. When you train Research at level 16, it starts your skill at Skill 16, far above the maximum possible by this formula. As such you cannot increase your skill any higher until level 19. The maximum skill is 200.
-Mcoy