For example, our survey focuses on common external indicators of growth. (entrepreneur.com)
Neurofeedback is a way of training the brain by allowing an individual to view some type of external indicator of brain activity and attempt to exert control over it. (sciencedaily.com)
You will be entering a world where obligations are going to be less clear, grades nonexistent, and external indicators of performance sometimes opaque. (gse.harvard.edu)