AllenR. M.The DTVP and the BG Test achievement of educable mental retardates. Journal of Learning Disabilities, in press.
2.
AllenR. M., HauptT. D., & JonesR. W.Visual perceptual abilities and intelligence in mental retardates. Journal of Clinical Psychology, 1965, 21, 299–300.
3.
DunnL. M.Peabody Picture Vocabulary Test.Minneapolis: American Guidance Services, 1965.
4.
FreemanF. S.Theory and practice of psychological testing. (3rd ed.) New York: Holt, Rinehart and Winston, 1963.
5.
FrostigM., LefeverW. D., & WhittleseyJ. R. B.A Developmental Test of Visual Perception. Perceptual Motor Skills, 1961, 12, 383–394.