highest level of education data item highest level of education is grades 10 through 12 data item 2020-09-02T13:27:50Z A highest level of education socio-economic data item that represents the fact that the highest level of education achieved by an individual in the United States is in the range of tenth (10th) through twelfth (12th) grade. Note: this broad, very loose level of grouping emerged as an early requirement from the SODA project, funded by a PCORI Methods Grant, at the University of Florida with Dr. Yonghui Wu as PI. It indicates completion of some to all of upper secondary education in the United States. William R. Hogan highest level of education is completion of grades ten through twelve socio-economic data item