This study examined the reliability and validity evidence of the Korean version
of Wechsler Primary & Preschool Scale for Intelligence(K-WPPSI-Ⅳ), which was
standardized recently. Following the stratified sampling for Korean population in
terms of region and maternal education level, 1,700 children aged 2.6~7.7 years
were recruited for Korean norm development. The split-half reliability (N=1,700)
was high(Fisher's z(.75-.89)) and test-retest reliability(N=100) was satisfactory
ranging from .95 to .68. The inter-rater reliability(N=110) was very high(.96-1.0).
Discriminant and convergent validities were revealed by correlational patterns
among subtests and indices. Future studies are needed to extend both reliability
and validity of K-WPPSI-Ⅳ by collecting data with a various sample group and
a variety of instruments.