Which is the most prominent development in the history of Industrial Psychology??

Answer 1

It would have to be instituting time and motion studies, and the relationship that holds to ergonomic growth in industry that resulted in an increase in productivity as well as a reduction in repetitive motion injury.

The time studies do come from the Hawthorne studies. He was an efficiency expert.

Answer 2

Understanding the difference between treating workers as whipping posts or treating them with respect.

It is a well understood fact that workers that feel good work better.