In this chapter, the following terms have the meanings indicated. Terms Defined. “Alternative behavior modification program” means a research-based, positive and effective school-wide program that includes the following: Systems and practices that: Enhance the capacity for all children to be successful; and Recognize appropriate behaviors and respond to behavioral violations; and A continuous assessment of school discipline data to facilitate appropriate decisions about implementation of research based practices. “Elementary school” means any comprehensive public school, excluding alternative settings or special schools, in which the school population includes any combination of students in prekindergarten through grade 5. “Habitually truant” means a student that meets all of the following criteria: The student was age 5 through 20 during the school year; The student was in membership in a school for 91 or more days; and The student was unlawfully absent from school for more than 20 percent of the days in membership. “Local school system” means any of the 24 local school systems in the State. “Positive behavioral interventions and support program (PBIS)” means the research-based, systems approach method adopted by the State Board to: Build capacity among school staff to adopt and sustain the use of positive, effective practices to create learning environments where teachers can teach and students can learn; and Improve the link between research-validated practices and the environments in which teaching and learning occur. “School” means any comprehensive public school in which the school population includes any combination of students in prekindergarten through grade 12, excluding alternative settings or special schools, in which the school population includes any combination of students in prekindergarten through grade 12. “Suspension rate” means the unduplicated count of students who receive out-of-school suspension as a disciplinary action during a year divided by the September 30 enrollment count. “Truancy rate” means the unduplicated count of students who are “habitually truant” from school during a school year divided by the September 30 enrollment count.