The control exerted by a stimulus associated with an extinction component (S-) on observing responses was determined as a function of its temporal relation with the onset of the reinforcement component (S+). Lever pressing by rats was reinforced on a mixed random-interval extinction schedule. Each press on a second lever produced stimuli…

These findings suggest that a high density of negative feedback induces both reflective and impulsive children to make fewer errors than does positive feedback. (Authors)

Impulsive second grade, inner-city children, were trained to improve their search strategies on visual discrimination tasks. Groups with training improved their search strategies, while the untrained control group did not. (ST)

Impulsive and reflective children performed in a discrimination learning task which included four reinforcement conditions: verbal-reward, verbal-punishment, material-reward, and material-punishment. (SB)

First-grade boys (N=260) were classified according to response style on a continuum of reflectivity-impulsivity using Kagan's Matching Familiar Figures Test. For all groups, performances were poorest under reward conditions and better under the punishment and reward plus punishment conditions. (ST)

This study investigates the relationship between temporal organization and the rate at which discrimination-reversal learning mastery occurs within sixth-grade students. Subjects were 22 male and 30 female students from a predominantly white, middle class rural school. Temporal behavior was assessed with a task that had subjects reproduce standard…

This study indicates that impulsive children inhibit expressive behavior less than reflective children in the presence of a nonverbal inhibitory cue, and provides support for the construct validity of the Matching Familiar Figures Test of reflectivity/impulsivity. (GO)

A total of 186 kindergarteners were pretested on number conservation and two cognitive style measures representing Kagan's impulsivity-reflectivity dimension and Santostefano's leveling-sharpening dimension. From this sample 72 nonconservers were assigned to one of three conservation training conditions: reversibility training, discrimination…

This study found that teachers' ratings of their 8 severely mentally handicapped pupils' (ages 9-18) classroom behavior were correlated with children's performance on a discrimination learning task. The factors of attention/distractibility and responsivity to consequences correlated significantly with number of errors and number of trials to…

This volume includes reports of five research projects of the Kansas Center for Research in Early Childhood Education: (1) Individual Differences in Newborn and Young Infants, including research with the Brazelton Neonatal Assessment Scale and laboratory studies of infant discriminative abilities; (2) Development of Social Competence, including…