Albert Bandura has been described as the most eminent living psychologist, and his work has had a profound effect on practice. Perhaps his best known research had to do with the effects of observing violence on behavior, an issue that has great social signficance given the violence in TV and games today.

More importantly, his work on observational learning (use of modeling) is critical for instruction.

Here are some videos describing his work and one longer one where he speaks at length about his own work.