mostly depends on kind of trading...intraday if need 1: 2 setups, it is tough as we cannot easily get a 2% move every time for 1% risk. volatility issues. But yea in swing/positional we should aim for 1:2, 1:3 even more...
as pradeep narayan say techniques/methods with good hit rate can help in day trading.
Yep, but then it was broken down to zero with one trade or situation like in the last few days, as there was no money management. So what is learned from this? Even the best spekulant can double and more his money in short time, but to hold any of this profit it in his hands is an other task.