Özet:

The main aim of this research is to adapt „Bracken basic concept scale- expressive form‟ into Turkish for preschool children(3-6 years) and to construc the reliability and validity of the scale. 3 -6 year old 380 children who live in İzmir and attending kindergarten have participated in reliability and validity study of the scale. For reliability studies of „Bracken basic concept scale- expressive form, arithmetic average, standard deviation values, the internal consistency coefficients have been calculated and test retest reliability has been executed. In reliability study, the correlation of test-retest is r= .99 (p < ,001). „Bracken basic concept scale- expressive form‟ Cronbach Alpha internal consistency coefficient is .91 and Spearman Brown two-half test correlation is .86 and KR-20 reliability has been calculated as .89. The findings obtained clearly state that this scale is a valid and reliable tool to study the concept development of Turkish children.

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