Abstract
Get full access to this article
View all access options for this article.
References
1.
Dunn
L.
Peabody Picture Vocabulary Test . Circle Pines, Minn. : American Guidance Service , 1965 .
2.
Englemann
S.
Carnene
D.
Distar arithmetic, pre-school—grade 2 . Chicago : Science Research Associates , 1970 .
3.
Hays
W. L.
Statistics for psychologists . New York : Holt, Rinehart, & Winston , 1963 .