Once we identified the HP6, we worked to conduct additional literature reviews and validity tests. We created the High Performance Indicator (HPI), based on the six habits as well as other proven success measures. We tested the HPI pilot with over 30,000 people from 195 countries and quantitatively proved its validity, reliability, and usefulness.9 We found that not only do the six habits combine to correlate with high performance, but each habit correlates with high performance on its own.
Hmm.
