This is my first post here, and I would like to say hello to everybody who is reading and writing posts on Personal Productivity Stack Exchange :)
I have known this subject (personal productivity) for a while, having read a lot of books about it, mainly the famous GTD ones, but also books from Stephan R. Covey, Leo Balbauta, or MYWN from Michael Lineberger. I have also read a lot of stuff about close domains of interest, such as procrastination management (see the books from Brian Tracy, Rita Emmett, Ari Tuckmann, Neil Fiore on habits, and "Overcoming Procrastination" on Wikiboks), ADD and ADHD people psychology, Personal Information Management (PIM), motivation, flow etc. I had also a software development attempt some years ago, implementing a task manager, a timer for Pomodoro techniques, and a routines/habits manager.
Everything first happened because of personal issues about productivity, and then it became a passionate subject of interest, leading me to want to redevelop my past software with innovative functionnalities and UX. But, in the other side, at the end of this bibliography journey, I feel like I have discovered a lot of techniques, good strategies to apply, but without any clue or proof about the effectiveness of everything, my experience being the only way to know if something is effective or not.
So, I would like to ask you this question : do you know any extensive scientific litterature exploring some of the things I know, and showing what works, what does not work, why, and giving strategies based on this bibliography and scientific proofs ? The only thing that I have seen until now is a brief paper saying that GTD principles are close to some cognitive studies. But I have not seen anything really satisfactory scientifically right now... Moreover, I think most of the bibliography I have read fails to give good advice about the software side of productivity management...
Thanks in advance !