Western Psychological Services

Western Psychological Services (WPS) is a leading global publisher of psychological and educational assessments, specializing in developmental and behavioral health. Founded in 1948, the company provides standardized diagnostic tools used by clinicians, researchers, and educators to evaluate conditions such as Autism Spectrum Disorder, ADHD, and speech-language impairments. Their portfolio includes industry-standard instruments like the Autism Diagnostic Observation Schedule (ADOS-2) and the Social Responsiveness Scale (SRS-2). WPS supports mental health professionals through both traditional print-based materials and modern digital assessment platforms.