http://www.psychologytoday.com/blog/ulterior-motives/200905/...
And the actual study, "When intentions go public : Does social reality widen the intention-behavior gap?" [PDF]:
http://www.uni-konstanz.de/psychologie/gollwitzer/PUBLICATIO...
http://www.psychologytoday.com/blog/ulterior-motives/200905/...
And the actual study, "When intentions go public : Does social reality widen the intention-behavior gap?" [PDF]:
http://www.uni-konstanz.de/psychologie/gollwitzer/PUBLICATIO...
It's interesting that Robert Cialdini says the opposite; according to his concept of "Commitment and Consistency", if people commit, orally or in writing, to an idea or goal, they are more likely to honor that commitment (http://en.wikipedia.org/wiki/Robert_Cialdini#Six_.E2.80.9CWe...).
You still have to do the work. You have to be someone that cares what others think of you, and you have to be willing to put a part of that reputation on the line.
I'm sure the example studies are real but I don't think they are of a similar shape.
What I'm talking about is stuff that you have to do either way, you're not going to be able to postpone it for ever. The activities listed in that study sound like they were optional to begin with.
So, the fact that you are going to have to do this stuff combined with damage to your reputation of being able to get stuff done is what drives it, not the fact that you've simply told someone.
Also, for me, talking about a project is another way to procrastinate actually doing it.