title: Commentary on Loring and Larrabee's Reanalysis of Reitan's Original Studies.
abstract: The article by Loring and Larrabee (2006) used effect size to compare Reitan's original Halstead Index (HI) data with Wechsler Bellevue Intelligence Scale (W-B) data. The results may be interpreted to support the concept that Halstead's concept of "biological" and "psychometric" intelligence was a form of "fluid" and "crystallized" intelligence. Except for three unused subtests, HI tests were fluid, while W-B performance tests were somewhat fluid and the W-B verbal tests were crystallized. Thus, the mean effect size of the normally used HI tests was almost twice that of W-B tests' mean size. The fluid nature of the HI tests provides their sensitivity to brain damage.
authors: 9350 S. Dixie Highway, South Miami, Florida 33156, USA. ewr@bellsouth.net
authors: Elbert W
authors: EW
authors: Russell
mesh_terms: D001925:Brain Damage, Chronic / Q000503:physiopathology / Q000523:psychology; D006801:Humans; D007360:Intelligence / Q000502:physiology*; D007361:Intelligence Tests; D009483:Neuropsychological Tests