Performance was consistently higher for pictures than for words, and this difference was unaffected by age, response mode, or presentation paradigm. (Author)

For the age range tested there is a lag between the perception and production of certain facial expressions. (Authors)

Study directed at determining which aspect of photographic representations of children differing along dimensions of race and sex would acquire control over responses of Negro children. (Authors)

Review of reversal learning data obtained from Ss of various developmental phases suggested that overtraining increases perseveration in pre-school children, and decrease perseveration in older (e.g., 1st grade) children. The present experiment tested this apparent trend. Children of two age groups (X = 4 yrs., 4 mos., vs. X = 6 yrs., 5 mos.)…

Performance of 162 children, ages five to seven, on concept formation and perception tests indicated that enforced delay in responding minimally affected all reflective subjects and impulsive boys; impulsive girls improved. (Available in microfiche from: Carfax Publishing Company, Haddon House, Dorchester-on-Thames, Oxford 0X9 8JZ, England.) (CP)