Replications and robustness checks are key elements of the scientific method and a staple in many disciplines. However, leading journals in developmental psychology rarely include explicit replications of prior research conducted by different investigators, and few require authors to establish in their articles or online appendices that their key…

Behavioral, neuropsychological, and brain imaging research points to a dedicated system for processing number that is shared across development and across species. This foundational Approximate Number System (ANS) operates over multiple modalities, forming representations of the number of objects, sounds, or events in a scene. This system is…

The results of four experiments comparing the behavior of children from two settings are reported in this article. (Authors)

Compares the reactions of mothers of 6- to 11-year-old conduct-disordered boys with those of mothers of normal boys, matched for age and education of mother, in situations whereby each mother interacted with her own child, with a child not her own of like classification, and with a child not her own of different classification. (HOD)

The purpose of this study was to examine self-reinforcement as an agent of behavior change with children who were deficient in desired attention behaviors. Twenty three first and second grade school children were taught through external reinforcement procedures to raise their level of attention on a simple discrimination task. Subjects in one…