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The A-not-B (AB) task has been hypothesized to measure executive/frontal lobe function; however, the developmental and measurement characteristics of this task have not been investigated. Performances on AB and comparison tasks adapted from developmental and neuroscience literature was examined in 117 preschool children (ages 23-66 months). Age(More)
Executive functions are difficult to assess in preschool children, yet the preschool period is particularly important, both in the development of behavioral control and of the brain, particularly the prefrontal cortex. Several tasks were adapted from developmental and neuroscience literature and then administered to 98 preschool children (30-, 36-, 42-, 48-(More)
There continues to be no consensus definition of executive functions. One way to understand different executive function components is to study abilities at their emergence, that is, early in development, and use advanced statistical methods to understand the interrelations among executive processes. However, to fully determine the constructs of interest,(More)
Psychologists must advocate for more stringent legal protection of psychological test materials because using standardized tests is the most distinguishing and exclusive feature of psychological evaluation practice. With the rapid growth in forensic consulting, unrestrained discovery of raw data and psychological test materials during litigation erodes the(More)
OBJECTIVE To determine whether prophylactic CNS chemotherapy for childhood acute lymphoblastic leukemia is associated with declines in neuropsychological abilities. METHODS Growth curve analysis was used to examine neuropsychological outcome and treatment-related change in children (N = 30) who were treated at two childhood cancer centers. A comprehensive(More)
OBJECTIVES To determine the relationship between membrane damage and intellectual and academic abilities in children with acute lymphoblastic leukemia (ALL) and pilot test a math intervention for children with ALL who were affected. DATA SOURCES Research studies and review articles. CONCLUSIONS Despite the prophylactic central nervous system (CNS)(More)
Clinical neuropsychologists accept more forensic referrals now and spend more time in forensic consulting than ever before. Recent surveys show weekly hours devoted to forensic consulting increased 97% in the past decade. During the same time period, the number of board certified neuropsychologists more than doubled. Under recently published Specialty(More)
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