A prevailing theory of mathematical problem solving predicts that children will be less accurate solving a + b = c + __ problems versus a + b = __ + c. However, this has never been tested directly. Because of low base rates, information combined from multiple studies can help improve estimation accuracy and precision. This study compared…

Children ask questions and learn from the responses they receive; however, little is known about how children learn from listening to others ask questions. Five experiments examined preschoolers' ("N" = 179) ability to solve simple problems using information gathered from listening to question-and-answer exchanges between 2 parties present in the…

This study examined whether children’s difficulties with stage-salient tasks served as an explanatory mechanism in the pathway between their insecurity in the interparental relationship and their disruptive behavior problems. Using a multimethod, multi-informant design, 201 two-year-old children and their mothers participated in 3 annual…

Skin conductance level reactivity (SCLR) was examined as a moderator of the association between harsh parenting and child externalizing behavior. Participants were 251 boys and girls (8-9 years). Mothers and fathers provided reports of harsh parenting and their children's externalizing behavior; children also provided reports of harsh parenting.…

When children with Down's syndrome and normally developing children of comparable mental age were compared in their ability to find things they saw in a mirror, it was found that the ability of children with Down's syndrome paralleled that of normally developing children, but that motivational, attentional, and exploratory differences may exist.…

Two experiments explored whether children's correct answers to counter factual and future hypothetical questions were based on an understanding of possibilities. Children played a game in which a toy mouse could run down either 1 of 2 slides. Children found it difficult to mark physically both possible outcomes, compared to reporting a single…

To investigate the development of function concepts and their relation to mathematical and logical abilities typically acquired during the age period of five to seven years, children were tested on nonnumerical function tasks, numerical tasks, and aspects of logical reasoning. (PCB)

Sixty-four mother-infant pairs were videotaped during structured episodes in which the mother challenged the infant to use her instrumentally to get access to or to operate a toy. At age 6 months the infants could use their mothers instrumentally in 36% of the episodes, increasing to 67% at 9 months and 78% at 13 months. (MDM)

Examines the effect of different training methods on perceptual learning of impulsive children. A matching to sample method (M), and a differentiation method (D) were used. Data indicated that Ss receiving D training learned to process features distinguishing stimuli; whereas, Ss receiving M training showed no preference for a particular mode of…

Describes five studies in which the learning and transfer abilities of two- and four-year-old children were examined on a task that required them to combine two separately learned solutions to reach a goal. (HOD)

Examined children's mathematical competencies between ages 7 and 9. Found no differences in developmental rate between children with math difficulties only (MD), math and reading difficulties (MD-RD), reading difficulties only (RD), and normal math/reading achievement (NA). Found that at end of Grade 3, MD group performed better than MD-RD group…

This study examined variables related to problem-solving approaches of young children, using the theoretical framework provided by Zigler and collaborators in their work on outerdirectedness. Four aspects of outerdirectedness were examined: developmental trends, different types of reinforcement, task difficulty, and pride in accomplishment. (ST)

Examined the reactions of 201 elementary school children to direct and indirect help and the moderating effects of grade, understanding of personality, and sex on children's reaction to aid. Results indicated that children high in the understanding of consistency of personality were more autonomous in the indirect than the direct help condition.…

Investigated how children's decisions about allocating money to story characters were affected by the relationship (friends versus strangers) among the characters. Children's rationales for their decisions showed that equality was the most salient principle for decisions at all ages and that older children provided rationales based on benevolence…