The Indiana Association of School Psychologists (IASP) was established in 1987 and serves as the professional home for numerous Hoosier School Psychologists and graduate students. It is a non-profit organization affiliated with the National Association of School Psychologists (NASP).

IASP follows the NASP Model for Comprehensive and Integrated School Psychological Services, which guides their provision of comprehensive and cost-effective school psychological services. They strive to align training, professional standards, and practice accordingly.

The mission of IASP is to advocate for educationally and psychologically healthy environments for all children and youth. They achieve this by promoting research-based best practices through professional development opportunities for school psychologists and fostering collaboration with others dedicated to the welfare of children.