Knowsys Educational Services is the product development branch of Knowsys Test Prep, LLC. We are Dr. Sheila Griffith and Kevin Griffith. Kevin has been in education since 1991, when he completed his BS in Education from Soutwest Texas State University (now Texas State University, San Marcos). Kevin's final semester in college was also his first assignment as a long-term substitute teacher for his mentor teacher. Kevin has two masters' degrees; one is a Master of Divinity, and the other is an MA in Christianity and Judaism in Antiquity. Kevin has also taught at the University of Virginia, Dallas Christian College, the B.H. Carroll Theological Institute, and in the Alief ISD. Kevin has also taught standardized exam courses since 1997. Additionally, Kevin has studied at the University of Tuebingen, Germany and The Hebrew University, Mount Scopus, Jerusalem.

Sheila went through Rice University in 3 years Summa Cum Laude with a triple major in Psychology, Anthropology, and Behavioral Sciences. She also holds a Master of Divinity; an MBA from the Jones School of Management, Rice University; and a PhD in Christianity and Judaism in Antiquity from the University of Virginia. Sheila has taught at the University of Virginia, Dallas Baptist University, Dallas Christian College, and the B.H. Carroll Theological Institute.

Knowsys Test Prep was founded in 2002 in Houston, Texas and now offers standardized test prep in Houston, Victoria, Waco, Coppell, Grand Prairie, and Dallas. Additionally, Kevin has studied at the University of Tuebingen, Germany and The Summer Latin Institute, The Vatican.