this process is much quicker than waiting for parents and children to show up at a playground and interact with one another,which is how natural observation would proceed.
to observe disruptive behavior, for example,hughes,et al (2002) had pairs of children play a competitive card game that was rigged to ensure that each child would experience a losing streak.Within 5 minutes,the researchers were able to observe behavioral responses to the anger and frustration produced by losing.