Complex sentence: He founded Klein Associates in 1978 in order to study a range of topics that are now described as the Naturalistic Decision Making framework and eventually left Wilberforce to focus on his company and its research.
Split into simpler sentences: He founded Klein Associates in 1978 in order to study a range of topics that are now described as the Naturalistic Decision Making framework. Klein eventually left Wilberforce to focus on his company and its research.