Over 725,000 California K-12 students received special education services in 2018-19, but the system is not always equipped to serve them. Early screening, identification, and intervention, as well as better transitions, educator support, and mental/physical health services, need improvement. A Multi-Tiered System of Supports (MTSS) framework in schools could address SWDs' needs, but it requires additional resources and policy support to improve educator capacity and collaboration between agencies while systematizing data on SWDs.

The CORE districts studied characteristics, outcomes, and transitions of students with disabilities (SWDs). Specific learning disability was the most common type. Males, African Americans, English learners, and foster youth were overrepresented. Chronic absence was higher for SWDs with multiple disabilities. Most SWDs entered special education in K-4 and exited in grades 8-12. These results help identify who may need targeted support.

This brief discusses how California's System of Support uses differentiated assistance (DA) to provide support to districts and boost student group performance levels. It analyzes the districts eligible for DA in 2019 based on their students with disabilities' (SWD) performance on State Priority Areas (SPAs) and indicators. The findings show that over half of the 333 eligible districts were driven by SWD performance in SPAs 4 (Pupil Achievement) and 5 (Pupil Engagement), highlighting intersectional challenges facing SWD that districts can address through their continuous improvement process.

This brief highlights California's Multi-Tiered System of Supports (MTSS), which assists struggling students. The inadequate resourcing of Tier 2 services is nevertheless preventing progress in reading and math, as California ranks 38th in the nation. Categorical funding is necessary to provide additional personnel, such as instructional aides and clerical staff, to assist teachers with implementing MTSS effectively.