This paper reports evidence from a longitudinal study in which children's attention to shape in a laboratory task of artificial noun learning was correlated with a rate shift in noun acquisitions. Eight children were tested in the laboratory at 3-week intervals beginning when they had less than 25 nouns in their productive vocabulary (M age=17 months). Children were presented with a novel word ...

With an activity inventory designed specifically for use among elderly people, detailed profiles of customary physical activity were obtained from 507 old (aged 65-74 years) and 535 very old (aged 75 years and over) individuals randomly sampled from the community. Participation in four categories of activity was assessed: outdoor productive activities; indoor productive activities; leisure acti...

We ask whether prime-age adult mortality due to HIV/AIDS decreases the endowment of knowledge for agricultural production in Kagera, Tanzania, reducing total factor productivity. We also quantify how much this negative effect contributes to the decrease in long-term household agricultural income growth compared to the contribution of decreased accumulation of productive assets; household member...

This study investigates the predictive value of child-related and environmental characteristics for early lexical development. The German productive vocabulary of 51 2-year-olds (27 girls), assessed via parental report, was analyzed taking children's gender, the type of early care they experienced, and their mono- versus bilingual language composition into consideration. The children were from ...

This article addresses the role of age-based faultlines in relation to the perceived productive energy of work teams and transformational leadership as a potential moderator of this relationship. Based on social identity and social categorization theory, teams that have strong age-based faultlines— defined as age subgroup formation that is reinforced by internal alignment with other demographic...

In the study influences on the productive vocabulary are examined regarding 16 month old children with, or with no siblings at home (n = 121). A parental report form, CDI, was used as instrument.Hypotheses regarding effects of different interaction environments were derived from the literature, and significant effects on the productive vocabulary were found; The first effect was that the produc...

Meara’s new volume primarily focuses on how word association data can be used in second language vocabulary acquisition research, particularly in the areas of the development of vocabulary depth, productive vocabulary skills and lexical organization in second language (L2) speakers. His book also serves as a concise summation of research to date involving word associations and second language v...