共 50 条
- [33] Changes in variability in "digit-symbol substitution" performance measured at the beginning and at the end of practice PEDAGOGICAL SEMINARY AND JOURNAL OF GENETIC PSYCHOLOGY, 1939, 54 (02): : 461 - 465
- [40] EFFECT OF AGE ON DIFFERENCES IN PERFORMANCE BETWEEN WRITTEN AND ORAL DIGIT SYMBOL TESTS BULLETIN OF THE BRITISH PSYCHOLOGICAL SOCIETY, 1965, 18 (59): : A23 - A23