PSYC31H3 Chapter 4: Chapter 4
Document Summary
Chapter 4 the rationale of deficit measurement. Species-wide performance expectations: all cognitive functions and skills that follow a common course of development that are usually fully developed long before adulthood and that are taken for granted. Individual comparison standards are called for whenever a psychological trait or function that is normally distributed in the intact adult population is evaluated for change: rate of change studies : depend solely on intra-individual comparison. The direct method using individual comparison standards requires the availability of premorbid test scores, school grades and other relevant observational data. In many cases be nonexistent or difficult to obtain: examiner must use indirect methods of deficit assessment from which individual comparison standards can be inferred. Word reading tests for estimating premorbid ability: nart national adult reading test, simpler : identifying which of a pair a letter groups is a real word.
