The document discusses definitions of intelligence from various scholars and researchers over time. It then describes different types of intelligence tests, including individual tests, group tests, verbal tests, and performance tests. It provides details about the Bhatia Performance Tests of Intelligence, developed in 1955 for the Indian population, including its five subtests and standardization process. It outlines administration instructions and scoring for the Koh's Block Design Test and Pass-A-Long Test subtests. Finally, it discusses intelligence quotient (IQ) classifications and references used.