How did you get to that point? I've been working towards trying for consistent lucid dreams. I'm most successful when I wake up early and go back to sleep for ~1 hour.
2. Keep a dream journal.
3. Do reality checking throughout the day.
4. Meditate before sleep. Do a relaxation exercise. There's 100s of them.
"Lucid Dreaming: A Concise Guide to Awakening in Your Dreams and in Your Life" is the definitive book on the topic that everyone copies. No one has additional information.
It haunted me for some time after because I never expected something like in the movie inception to be possible in real life.
A study to test this would be simple - test skills level at something (e.g. chess), and then have the study participant study "in their sleep" for a month. Test again. It has never been done. Not even close. As it has never been done, I strongly believe you are misinterpreting / over-stating your results.