The first large-scale use of the IQ test in the US was during the World War I (circa 1914-18). The Educational Testing Service (ETS) established in 1948 is the world's largest private educational testing and measurement organization, operating on an annual budget of approximately $900 million.
The Elementary and Secondary Education Act of 1994 requires standardized testing in public schools. US Public Law 107-110, known as the No Child Left Behind Act of 2001 further ties public school funding to standardized testing.
The USA educational system judges the academic qualification of applicants on their test results of standardized tests, standardized college and graduate-school entrance tests:
SAT - Scholastic Aptitude Test, developed in 1926 for college
SSAT - for preparatory school
PSAT/NMSQT - Preliminary SAT/National Merit Scholarship Qualifying Test
ACT - American College Test
TOEFL - Test of English as a Foreign Language
TOEIC - Test of English for International Communication
IELTS - International English Language Testing System
TWE - Test of Written English
TSE - Test of Spoken English
GRE - Graduate Record Examination, for graduate school
GMAT - Graduate Management Admission Test for business school
LSAT - Law School Admission Test for law school
MCAT - Medical College Admission Test
MOAT - for medical school,
DAT - Dental Admission Test
MAT - Miller Analogies Test
PCAT - Pharmacy College Admission Test
HSPT - High School Placement Test for entrance into High School