Perceptual exploration in twins

Matheny, Adam P.

doi:10.1016/0022-0965(72)90035-5

Cited by 11 publications

(1 citation statement)

References 13 publications

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“…By the age of 5, the typical normal child has not only gained psychomotor mastery of the latches but moves from lock to lock in an orderly fashion (Sequencing scale), explores systematically once a door is open (Patterning scale), and is rarely purposeless (Aimless Actions scale). These findings are consistent with prior research on perception, which has repeatedly demonstrated that over the preschool and early elementary years, children, when asked to lable pictures of objects scattered over a page, increasingly impose a systematic directional order (Elkind & Weiss, 1967;Gottschalk, Bryden, & Rabinowitz, 1964;Hansley & Busse, 1969;Matheny, 1972). Because these changes are sharply influenced by age but are fairly independent of sex, IQ, and SES in normal children, they may well be rooted in maturational structures and relatively impervious both to environmental conditions and other developmental progressions, such as language.…”

Section: Discussionsupporting

confidence: 90%

The Lock Box: A measure of psychomotor competence and organized behavior in retarded and normal preschoolers.

Goodman¹

1981

Journal of Consulting and Clinical Psychology

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The Lock Box, a large container with 10 latched compartments each housing a different toy, is a standardized method for evaluating the preschool child's approach to an unstructured situation. From the spontaneous behavior, coded over 6½ min, scales were derived measuring psychomotor competence, organization of exploration, and aimlessness. The test was administered to 290 normal (mean IQ 111.4) and 91 retarded (mean IQ 58.1) children between the ages of 2 and 7 yrs. In the normal group, scores were highly correlated with CA but not with sex, socioeconomic status, or IQ. Retarded Ss performed significantly more poorly than normal Ss of similar age on all scales, with the greatest discrepancies apparent on an aimless actions scale. The excessive aimlessness of the retarded was evident when competence and tested intelligence were controlled. Findings are related to the development of orderly exploratory patterns in normal and retarded children. (27 ref)

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Section: Discussionsupporting

confidence: 90%