Conservation of Part and Whole in the Acquisition of Class Inclusion
1973; Wiley; Volume: 44; Issue: 2 Linguagem: Inglês
10.1111/j.1467-8624.1973.tb02169.x
ISSN1467-8624
Autores Tópico(s)Early Childhood Education and Development
ResumoSHEPPARD, JoHN L. Conservation of Part and Whole in the Acquisition of Class Inclusion. CHILD DEVELOPMENT, 1973, 44, 380-383. A training program for class inclusion was developed using an identity transformation and a transformation of addition. From a sample of 104 6-year-olds an experimental group and control group of 21 Ss each were selected. A 10-item test of class inclusion was given in a pretest-posttest design to assess concept changes brought about by training. The experimental group improved significantly while the control group did not change. Support for the operation of internal factors in cognitive development was provided by an obtained increase from first to second posttest scores. 2 conservations were considered to be involved-conservation of the whole and of the part.
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