Investigated developmental changes in children's judgments of age of people in photographs with emphasis on judgments correlating age and physical size. Results were discussed in terms of previous age perception studies and Piagetian Theory. (DP)

Author claims that Piaget's account of the construction of reality needs modification and a shift in emphasis. (Author/MB)

Study attempted to determine the viability of optimal level theory as it pertains to infant perceptual and cognitive development. (Authors)

Aesthetic experience is to be viewed as a liberating discipline, an integral component of human life leading to a fuller expansion of consciousness and the actualization of the individual personality. (Author)

The conservation of distance and of length and the awareness of the horizontal and of the vertical do seem to significantly precede the measurement of length, but the results did not indicate that these four tasks have any developmental order among themselves. Bibliography, charts. (Author)

Paper presented at the Merrill-Palmer Conference on Research and Teaching of Infant Development, February 13-15, 1970. (JE)

Defines "critical thinking" and discusses specific instances in two novels which might be analyzed by students to detect fallacious reasoning by characters in literary works. (RD)

Results of this study of 72 4-month-old infants suggest caution in using an overt demonstration of habituation as a necessary index of perceptual learning. (Author/MG)

This study supported by a Public Health Service Research Grant, establishes "that discrimination reversal learning and transposition can be markedly facilitated by a common training procedure which is essentially perceptual in nature. (Author)

The study explored ways in which congenitally blind children group objects and words, revealing their level of cognitive development. Differences in patterns of response as a function of age and type of tasks are presented, and the implications of these findings for the education of this population are discussed. (Author/CL)

Items from the Leiter International Performance Scale (LIPS) were analyzed for their conceptual versus perceptual character; these item groupings were then used to create intratest LIPS profiles for 16 language-disordered and 16 children aged 4.4 to 5.5, who were matched for CA, sex, and Leiter IQ. (Author)