July 12th, 2012 at 4:48:37 AM permalink
Not really a psychological tool. If you don't go all-in pre-flop, you let people see cheap or free flops. A good flop can upgrade 72-off to a full house. Then people with that 72o will call your bet, instead of folding preflop.
I'm assuming here that the choice is between going all in and (placing or calling) a raise, not going all in and limping/checking.
The trick to poker is learning not to beat yourself up for your mistakes too much, and certainly not too little, but just the right amount.