Today, we look at the early history of I/O psychology and how business can benefit from the science of psychology. Harry Hollingworth was an influential figure in business psychology, as was his wife Leta Stetter Hollingworth.

Our video on Leta Stetter Hollingworth:
   • Leta Stetter Hollingworth: Psychology...  

Further Reading:
Hollingworth, H., Benjamin, L. T., & Royer-Barton, L. (2012). The Applied Psychology of Harry Hollingworth: Roots in the Great Plains, Volume 1.

Benjamin, L. T. Jr. (2009, February). Pop psychology: The man who saved Coca-Cola. Monitor on Psychology, 40(2). https://www.apa.org/monitor/2009/02/c...

Benjamin Jr, L. T., Rogers, A. M., & Rosenbaum, A. (1991). Coca‐Cola, caffeine, and mental deficiency: Harry Hollingworth and the Chattanooga trial of 1911. Journal of the History of the Behavioral Sciences, 27(1), 42-55.

Hollingworth, H. L. (1912). The influence of caffein on mental and motor efficiency (No. 22). Science Press.