This study determined the degree to which the Non-Language Test of Verbal Intelligence, developed to measure verbal ability through a nonlanguage medium, could measure verbal intelligence. Correlation with the Differential Aptitude Test-Verbal suggested the existence of some common, as well as some uncommon, factors between the two tests.…

The stability and change of verbal, non-verbal, and total IQ scores from group tests were investigated for students tested at Grades 1, 2, 4, 7, 9, and 11. Conclusions are discussed in detail, and the following recommendations are made: (1) Group intelligence tests should not be routinely administered in Grades 1 and 2 unless the users and…