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What is I-O Psychology?

The field of Industrial-Organizational (I-O) Psychology applies the science of psychology to all aspects of the workplace. "Industrial" refers to a wide variety of concepts related to personnel (e.g., selection, training, performance management), and "organizational" refers to concepts that apply more broadly to the organization as a whole (e.g., culture, change management, diversity). Another field of study related to I-O Psychology is Occupational Health Psychology (OHP). OHP is a separate, interdisciplinary field that focuses on employee health and wellbeing. Though OHP is not a sub-field of I-O Psychology, it is a natural extension for many I-O scientists and practitioners given the overlap between areas of interest. I-O psychologists who specialize in OHP issues often approach them from both a personnel and organizational perspective. 

As an I-O psychologist, you can contribute to the success of organizations by improving employee performance and wellbeing. According to the Society for Industrial and Organizational Psychology (SIOP), I-O psychologists assist organizations by:

Growing Need for I-O Psychologists

The need for I-O Psychology is growing as organizations look towards evidence-based procedures in hiring, training, and retention of employees. Jobs in I-O Psychology can be found in every sector of the labor market, including fortune 500 companies, factories, sports teams, universities, nonprofits, government, and military just to name a few.

According to US News 2024 Best Jobs Rankings, I-O Psychologists ranked  

Where do I-O Psychologists work? 


For more information about the study and practice of I-O Psychology, check out these links: