This is a Nexus 7 forum ... are you asking about a Samsung device? I assume the "msung" Keyboard selection is supposed to be "Samsung."
To the OP, what do you mean by predictive text? Do you mean auto correct? The only predictive text that the stock Android keyboard can do is suggestions. Are you referring to Swift key's predictive text?
You should have keyboard(s) listed at the settings page mentioned above and then tap on the slider icon to the right of the keyboard you want to modify. The settings menu items you then see would be different for each keyboard. Most I have seen with predictive text have a way to turn that feature off.
Dude thanks for the help. I have a Samsung i9001 and recently instaled on it Android 4.0.4 and after it I realized that this ROM dosen't have a T9 option like the rest of the before ROM's like Androit 2.3. It was stressing me out, I hate predictive text options. So I realized that the key is going to Language and Input then Android Keyboard and then Auto Correction and checked the OFF circle