Permanency of mental alertness measures

Abstract

50 persons whose intelligence was originally tested with Bureau Test VI were retested after a 10-year period. They had been employed in the same company during this period. There was a correlation of .89 between the 2 tests. The employees were classified into 3 job levels according to the job held at the end of the 10 years of service. These groups were simple clerical work, complicated clerical work and decision-making jobs. The correlations of the intelligence tests with this variable were .77 for Bureau Test VI and .83 after 10 years of service. (PsycInfo Database Record (c) 2025 APA, all rights reserved)