This quantitative study investigated the connection between quality models and project management's success rates. The project managers that made up the sample covered a wide variety of industries and were 18 years of age or older. The research design of this study was non-experimental and used loglinear analysis to examine a sample of project managers. The study was performed through the use of a newly created survey that has been reviewed by subject matter experts for validity and reliability. Data was gathered by a professional data collection service. There were three questions asked. Each of the three question was the same except that it referenced one of the three quality models examined, Six Sigma, Lean, and, Lean Six Sigma. The question asked was if each specific quality model could be used to increase a project's success rate. Each quality model was determined to be useful and was more beneficial as additional amounts of the quality model was used. The results had an effect size of 0.3 and showed that there is a positive connection between the use of quality models and project management's success rate. In addition, it was shown that the more of a quality model that is used the greater the increase in the project management success rate.
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