This study examined relations between children's false statements and response latency, executive functioning, and truth--lie understanding in order to understand what underlies children's emerging ability to make false statements. A total of 158 (2- to 5-year-old) children earned prizes for claiming that they were looking at birds even when…

Elevated levels of risky behavior in adolescence may signal developmental change in unconscious appraisal of risk. Yet, prior research examining adolescent risk judgment has used tasks that elicit conscious deliberation. The present study, in contrast, attempts to characterize age differences in (less conscious) intuitive impressions of risk.…

Objective: It is an open question whether working memory (WM) and response inhibition (RI) constitute one integral phenotype in attention deficit hyperactivity disorder (ADHD). Method: The authors investigated 45 adult ADHD patients and 41 controls comparable for age, gender, intelligence, and education during a letter n-back and a stop-signal…

Explored the relationship among conceptual tempo, age, sex, and performance of preschool children on the visual association subtest of the Illinois Test of Psycholinguistic Abilities. (Author/DB)

Generalizability theory was applied to the Matching Familiar Figures Test (MFF), an instrument commonly employed to assess reflection-impulsivity in children, in order to analyze the dependability of the MFF at four grade levels: second, third, fourth, and fifth. The MFF was individually administered to 114 boys. A completely crossed, two-facet…

The project report summarized here describes the interrelationships of the individually administered tests given to 820 Head Start children from three urban sites in the second year of a longitudinal study. These results are compared with those obtained in Year 1, the year prior to the students' attendance in a group program. The tests tapped…

Age-related and test-retest changes in reflection and impulsivity were investigated among preschool and school age subjects and senior adults. A study of each age group was conducted using either the Matching Familiar Figures test (MFF) or the Kansas Reflection-Impulsivity Scale for Preschoolers (KRISP). In all three studies the procedure was to…

A three-year longitudinal study was conducted with 895 Head Start children to examine the development of self-regulatory abilities during the preschool years. The purpose was to discover, given the behaviors measured, whether there is convergent and discriminant validity for the existence of one or more dimensions of self requlatory behaviors…

In a sample of 92 children aged 6-13 years this study investigates the normal developmental change in the relation between executive functioning (EF) and the core behavioural symptoms associated with attention deficit hyperactivity disorder (ADHD) (hyperactivity/impulsivity and inattention) as well as symptoms often co-occurring with childhood…

Performance of 162 children, ages five to seven, on concept formation and perception tests indicated that enforced delay in responding minimally affected all reflective subjects and impulsive boys; impulsive girls improved. (Available in microfiche from: Carfax Publishing Company, Haddon House, Dorchester-on-Thames, Oxford 0X9 8JZ, England.) (CP)