Describes a pilot project with two objectives: 1) to develop measures of curiosity and exploration applicable to preschool children, and 2) to investigate the relationship between variations in exploratory behavior and other aspects of emotional and cognitive growth. (WY)

Reports a cross-sectional study examining intensity of stimulation and verbal stimulation in home circumstances as these factors relate to psychological development across several age groups (7th, 11th, 15th, or 22nd month of life). (WY)

Teaching methods that guide pupils' mental activity and encourage them to employ rational thinking techniques are described. (DB)

Indicates that two major nonexclusive permutation problem-solving strategies increase with age: (1) mathematical group structure, and (2) holding initial marks constant while permuting the remainder. Significant sex differences are suggested. This report is based on a dissertation submitted to the Graduate School of Purdue University by the first…

Attacks two assumptions: (1) that schooling raises the level of cognitive development of students, and (2) that this increase explains the relationship between schooling and earnings. (Author/LR)

Examines the question of whether environmental factors restrict only the capacity to perform the type of tasks schools require, or if they inhibit the general capacity to learn. (NH)

Portions of this paper were read at the Eastern Psychological Association meeting, April 1968, Washington, D.C. (DR)