Several recent studies have explored the applicability of the preferential attachment principle to account for vocabulary growth. According to this principle, network growth can be described by a process in which existing nodes recruit new nodes with a probability that is an increasing function of their connectivity within the existing network.…

We analyzed the differential processing of nouns and verbs in a lexical decision task. Moderate and high-frequency nouns and verbs were compared. The characteristics of our material were specified at the formal level (number of letters and syllables, number of homographs, orthographic neighbors, frequency and age of acquisition), and at the…

Few adult second language (L2) learners successfully attain high-level proficiency. Although decades of research on beginning to intermediate stages of L2 learning have identified a number of predictors of the rate of acquisition, little research has examined factors relevant to predicting very high levels of L2 proficiency. The current study,…

Verbal fluency tasks are used extensively in clinical settings because of their sensitivity to a wide variety of disorders, including cognitive decline and dementia, and their usefulness in differential diagnoses. However, the effects of bilingualism on neuropsychological assessment, and verbal fluency in particular, are currently not completely…

The present experiment investigated memory attribute dominance in young children by measuring false recognition responses to associatively and acoustically related words. Second- and sixth-grade children, half of whom were high SES and half low SES, served as subjects. Following Underwood (1969), a shift from acoustic to associative memory…

Children's communication performance improves with age, which could result from increases in children's vocabularies, changes in their strategies of selecting messages from their vocabularies, or both. Three experiments were conducted to evaluate these explanations. Two types of communication tasks were employed. These data suggest younger…

Examines the CDI-WORDS Short Form vocabulary checklist as an index of language production. The study focuses on the associations between this short form and directly observed measures of lexical production; the associations between short-form checklists administered at different ages; the predictive associations between short form scores and…

THE RELATIONSHIPS BETWEEN PREREADING MEASURES OF VISUAL-MOTOR-PERCEPTUAL SKILLS AND READING ACHIEVEMENT WERE STUDIED. SUBJECTS WERE 172 FIRST GRADERS. PRETESTS AND POST-TESTS FOR WORD RECOGNITION, MOTOR COORDINATION, AND VISUAL PERCEPTION WERE ADMINISTERED. FOURTEEN VARIABLES WERE TESTED. RESULTS INDICATED THAT FORM-COPYING WAS MORE EFFECTIVE THAN…

Original thinking was examined in 142 middle- and lower-class children across a wide range of age (7-13 years) and intellectual ability (low average to gifted). The instruments were lenient and stringent solution-standard measures of original problem solving and two subtests of the Wechsler Intelligence Scale for Children. (Author/PN)