No research, to the author's onowledge, exists to correlate learning outcomes to study or learning emphasis of physics masters students. Readon is that usually highly academically achieved students enroll in these masters. But this is just an assumptions that prevents progress and promotes social discrimination or wider student population prospective success.
Some ideas about factors
• proper& conscious emphasis of critical skills (assumption making, conceptual background of theories)
• constructuve utilization of lecture time
• methodical and self-aware of stste of onowledge past paper studying
• relevant journal article study, which deals with exciting ideas and extends tsught concepts