Delay in receiving a reward was studied in 6 to 9-year-old children. Results indicated that the older children, in contrast to the younger children, chose a delayed reward over immediate reward, whether or not they saw the reward before choosing. (ST)

Children from 18-30 months who spoke in either one-or two-word utterances were tested for their ability to discriminate between grammatical and ungrammatical sentences. Results showed that these children can discriminate. (ST)

Normal elementary school children and retarded adolescents were given a problem solving task. The performance of retardates was inferior to that of normal children when mental age was controlled. (ST)

Recall, knowledge, and preference for masculine and feminine items were tested on 240 American 5- and 8-year-olds. Children recalled, knew, and preferred same sex items significantly more than opposite sex items. Results are compared with a previous study with English children. (ST)

Presents a study designed to assess the effects of children's viewing filmed violence and their subsequent readiness to report an argument and fight between two younger children to an authority figure. (ST)

The influence of perceptual factors and language comprehension on quantity judgments (number conservation) was assessed in children, aged 2-5. (ST)

Scores on a mental development scale were correlated for 8-month-old twins and other sibling pairs. Greater correlations were found between twins than sibling pairs. (ST)

Young children aged 2-4 years were tested with word recognition lists ina study of their memory development. (ST)

Black and white children, matched for social class and nonverbal intelligence, were tested on vocabulary words and sentences presented in black dialect and standard English. Both groups performed equally well on standard English sentences, but white children performed significantly poorer in black dialect sentences. (ST)

A battery of nine tests, including verbal and imaginal measures was administered to 200 first- through fifth-grade children. Results revealed that verbal processes and mental imagery developed in a curvilinear manner with parallel rates of change. (LLK)

One hundred and sixty subjects ages 7, 9, 11 and 21 years judged the standard Brentano form and a dot form of the illusion of 5 trials at 30 second intervals. (LLK)

Investigates the relationship of subvocal speech to recall in 46 4- and 5-year-old children on three muscle sites: lip, chin, and a nonspeech control. (LLK)

A test of recognition memory for sentences was administered to 22 poor readers and 15 good readers ages 10.5 to 14.6 years. Poor readers were markedly retarded in aspects of the graphemic analysis (pattern-analyzing) of the texts. (LLK)

Investigates the ability of 2-year-old children to pretend that one thing is another. Results indicate that when one thing is substituted for another, pretending varies as a function of the number of substitutions. (LLK)