The developmental roots of environmental stewardship: Childhood and the climate change crisis.

Childhood presents heightened vulnerabilities and unique opportunities in the context of climate change. Even very young children view the environment as a moral concern. Furthermore, early life experiences can lay the groundwork for a lifetime of environmental stewardship.

Labels affect preschoolers' tool-based scale errors.

Scale errors offer a unique context in which to examine the interdependencies between language and action. Here, we manipulated the presence of labels in a tool-based paradigm previously shown to elicit high rates of scale errors. We predicted that labels would increase children's scale errors with tools by directing attention to shape, function, and category membership.

Word comprehension and production asymmetries in children and adults.

Two studies investigated differences in the comprehension and production of words in 2-year-old children and adults. Study 1 compared children's speaking and understanding of the names of 12 novel objects presented over three weekly sessions. Study 2 tested adults' performance under similar training and testing conditions over two sessions.

The shape-bias in Spanish-speaking children and its relationship to vocabulary.

Considerable research has demonstrated that English-speaking children extend nouns on the basis of shape. Here we asked whether the development of this bias is influenced by the structure of a child's primary language. We tested English- and Spanish-speaking children between the ages of 1 ; 10 and 3 ; 4 in a novel noun generalization task.

Fast mapping skills in the developing lexicon.

Purpose: This preliminary investigation was a longitudinal study of fast mapping skills in normally developing children, 16-18 months of age. The purpose was to examine the effects of practice on the accessibility of words in lexical memory.

Method: Eight children were taught the names of 24 unfamiliar objects over 12 weekly training sessions.