Exhibit 6.21 presents fourth grade students’ school principals’ reports about their years of experience. On average, fourth grade students’ principals had 10 years of experience as a principal. Thirteen percent of the students had very experienced principals with 20 years or more of experience, 29 percent had principals with at least 10 years of experience, 27 percent had principals with at least 5 years of experience, and 31 percent had principals with less than 5 years of experience.

Exhibit 6.22 shows eighth grade students’ school principals’ reports about their years of experience. On average, principals of schools with eighth grade students had 9 years of experience as a principal. Eleven percent of the students had principals with 20 years or more of experience, 28 percent had principals with at least 10 years of experience, 28 percent had principals with at least 5 years of experience, and 34 percent had principals with less than 5 years of experience.