Its really an interesting article. It all comes to what we have and what is the opponent likely to have, but I would say that more oftenly we will check to induce a bet right? lets say we think opponent has missed his draws and we have a hand that's not near the nuts but we think we are beating him, it is better to check to induce bluffs, because if he checks behind we would earn the same as if we had bet because he would have folded, but if he thinks he can bluff us then its more money to the pot.