Meh, Dutch roll is slightly different. During Dutch roll the aircraft rolls and yaws out of phase. For example, the aircraft yaws due to a disturbance, one wing picks more speed (on swept wing increase of effective chord). That wing will then create more induced drag causing a yaw in opposite direction and the cycle continues. The C172 and most other straight wing aircraft are NOT particularly sensitive to it, you could induce Dutch roll by applying rudder input in the right frequency but it will die out as soon as you center the rudder.
Edit: I made a typo, C172 and other GA aircraft are NOT sensitive to Dutch roll.