Dr. Joshua D. Hayes is an author, educator and senior data scientist. As an author, he is co-author of Supervision in the Hospitality Industry, 7th. edition, published by the National Restaurant Association as well as Revenue Management for the Hospitality Industry, 2nd. edition published by John Wiley. Additional project work for John Wiley includes significant contributions on writing the learning assessment tools that accompany the culinary texts Professional Cooking 9th ed. and Professional Baking 7th ed. His work for Pearson-published projects include overall narrative and computational assessment review for Culinary Math and Hotel Operations Management 3rd ed. His hospitality industry-related work has been published nationally and internationally at hospitality.net and hotel-online.com. As an educator he has nearly a decade of experience in university-level classroom instruction serving as lead instructor of classes ranging in size from 10 to over 150 students. His lectures and presentations include teaching sessions at the University of California, Davis, and research presentations at Berkeley, Washington D.C., Montreal, and Oxford University. He is a specialist in designing and drafting learning assessment measures that focus on the accurate measurement of student learning outcomes to optimize initial comprehension and enhance long-term retention. As a senior data scientist, he has managed projects that have exceeded the expectations of the highest levels of intellectual rigor. Managed project results, including his own innovative research findings, have been presented at the California Senate, the American Sociological Association, the California Sociological Association, the Oxford Religious Studies Symposium, and the University of California Berkeley. He has extensive knowledge of quantitative methodology, statistical analysis, data management and study design. Combined with his teaching experience, his knowledge of research methods empowers him to assess and measure validity, test reliability, teaching outcomes, training objectives, and student retention as well as to ensure training programs meet their targeted objectives. He earned his Ph.D. from the University of California, Davis. He earned his Master’s (MA) degree from Stanford University and his Bachelor of Arts (BA) from Michigan State University.