Several forms of assessment tools, including behavioral rating scales and objective tests such as the Continuous Performance Test (CPT), can be used to measure inattentive and hyperactive/impulsive behaviors associated with Attention-Deficit/Hyperactivity Disorder (ADHD). However, research with school-age children has shown that the correlations…

Do preschool children appreciate numerical value as an abstract property of a set of objects? We tested the influence of stimulus features such as size, shape, and color on preschool children's developing nonverbal numerical abilities. Children between 3 and 5 years of age were tested on their ability to estimate number when the sizes, shapes, and…

It is commonly believed that highly subjective humans ultimately perform all testing and grading efforts and that all testing and grading is completely subjective. However, Quentin Durham argues that there is no such thing as objective testing or grading. With wit and clarity, "The Realities of Classroom Testing and Grading" suggests that all…

The purpose of this study was to determine whether multiple-tact training and receptive-discrimination training could be used to teach thematically related vocal intraverbals to typically developing preschool children. Multiple-tact training involved teaching a child to name both the item and the category to which the item belonged.…

This study investigated the role that agency information plays in children's early interpretations of grammatical aspect morphology, in particular, the progressive "-ing" and simple past forms. Fifty-nine children (two-, four- and five-year olds) were presented with a forced-choice sentence-to-scene matching task very similar to the one used by…