You are confusing adverse aileron yaw with the further effects,. It dosn't happen if you apply back pressure and keep the aircraft level and what you will be demonstrating then is the effect of adverse aileron yaw.
I think you will find it is you that are confused, rondon, not bookworm who almost certainly is not talking about the use of rudder to avoid adverse aileron yaw!
To turn the aeroplane, it has to yaw (other than, as billiebob said earlier, in a level turn at 90deg bank angle - but since that's rather hard to sustain it can be ignored!). To yaw, it either has to have some small amount of sideslip, even in level flight, for the fin to provide a yawing force ... or a small amount of in-turn or bottom rudder is necessary to achieve the same effect.