[mgadams3]

The cited article pulled out a catchy headline from an extrinsically motivated context like Telemarketing. Not surprising that people who fail from a rote task get de-motivated and quit, learning nothing.

I don't believe that study has any relevance to the world of creative work -- like building products or becoming a Jedi ;) -- that is driven by intrinsic motivation to iterate and improve. Success rarely requires the same level of self-evaluation and reflection in creative contexts.