NEPSY On psy (which stands for "A Developmental NEuroPSYchological Assessment") is a series of neuropsychological tests authored by Marit Korkman, Ursula Kirk and Sally Kemp, that are used in various combinations to assess neuropsychological development in children ages 3–16 years in six functional domains. NEPSY was designed to assess both basic and complex aspects of cognition, critical to children’s ability to learn and be productive, in and outside of, school settings. It is designed to test cognitive functions not typically covered by general ability or achievement batteries. The original NEPSY (Korkman, Kirk & Kemp, 1998) was published in 1998 by Pearson Assessment, and was superseded by the NEPSY-II (Korkman, Kirk & Kemp, 2007a, 2007b) in 2007. History Pediatric neuropsychological assessments evolved from knowledge and experience from the assessment of adults with brain damage. Consequently, early tests were not specifically designed with children in mind and were often normed on small samples of children. The development of the NEPSY was revolutionary as it was specifically designed for the purpose of testing children. The NEPSY is grounded in developmental and neuropsychological theory and practice. The diagnostic approach originated in the Lurian approach to assessment (Luria, 1973, 1980). The original NEPSY test battery was published in Finnish in 1980. It was not until 1998 that the English version was published. When first published in English, the age range for testing was 3 to 12 years old. The original version of the NEPSY consisted of five theoretically derived domains: Attention and Executive Functioning, Language, Memory and Learning, Sensorimotor, and Visuospacial Processing. These domains were made up of a total of 25 subtests that would either provide an individual score or be part of the overall domain score. The NEPSY-II was published in 2007. One of the first changes of note was the increased age range, allowing for testing of children and adolescents from 3 to 16 years 11 months of age. The NEPSY-II test battery also added a new domain, Social Perception, and eleven new subtests, and removed four of the old subtests. The test battery thus consists of six domains comprising 32 subtests. The NEPSY-II also exists in two forms: one for ages 3 through 4 and one for ages 5 through 16. The creators also removed the option for domain scoring, a choice which is still hotly debated today (Brooks, Sherman, and Strauss, 2010; Korkman, Kirk, and Kemp, 2007). The largest change