This is his bio
Matthew Gould - Head of School
Matthew holds a Ph.D. in education from the University of Chicago and a B.A. from Earlham College in Richmond, Indiana. Prior to being appointed Head of Community School in 2004, Matthew was the Assistant Headmaster and Head of Lower School at Far Brook School in Short Hills, New Jersey. Matthew has extensive classroom teaching experience, both in public and independent schools. Matthew has also coached middle school soccer and track & field, and directed summer camps for elementary-aged children in Pennsylvania and Maryland. Matthew is an active member of the Independent Schools of St. Louis (ISSL), the Independent Schools of the Central States (ISACS), the National Association of Independent Schools (NAIS), and the Elementary School Heads Association (ESHA). He is on the boards of the Field School in Washington, D.C., the Elementary School Heads Association, and the ISACS Evaluation Review Committee.
This is from the school he currently is head of called Community School. I was impressed to see that he actually provides some info on academic performance of the school
Academic Excellence
Community School's reputation is built on academic excellence. The source of that excellence is the unique way Community School provides learning experiences in which children make discoveries about both their surroundings and themselves. Small class size further supports academic excellence allowing each student to grow and develop at his or her own pace. Going beyond mastering the facts, Community School produces avid readers, curious learners, and independent thinkers.
Community’s focus has never been on test scores. Good test scores are not our goal; they are not what we aspire to be as a school. However, these scores do validate that our philosophy of education – hands-on learning, creativity, group process, collaboration, and emphasis on the Arts – works. Below is the chart of the last 5 years (average median scores) of Community School as compared to independent school norms and national norms.
http://www.communityschool.com/academics/academic-excellence
Not only do Community School classes outscore other independent schools, the gap between Community School and other schools increases over time— meaning as students move through the grades, their work and achievement accelerates or improves relative to their peers in other schools. In other words, Community School students are extremely well-prepared for secondary school and beyond.