When I first went to the US with my south Dublin accent, almost everyone I spoke to asked me if I was Australian.
The DCs in RC elemetary did Terra Nova tests every two years beginning in first grade, for a total of four nationally RC-school administered standardised tests. In 8th grade they took the state and public high school-administered Explore test along with public high school placement testing for streaming purposes, and anyone who wanted to go to private HS did entrance exams for each one they were considering. They all had weekly tests - give or take - every year from first grade to the end of high school, because of the continuous assessment required in order to yield a grade point average (GPA)
In the public elementary and middle schools they take a state standardised test every year from grade 3 to 8 plus in-house tests.
In high school here they weekly tests plus in-house midterms and semester finals, and also external exams --
*the PLAN test in 9th grade (first year of high school) which is supposed to be 'a comprehensive guidance resource that helps students measure their current academic development, explore career/training options, and make plans for the remaining years of high school and post-graduation years' and give a middle of freshman year snapshot of progress when measured against the Explore test --
*the PSAT/NMSQT taken in 11th grade (junior year), which measures critical reading, maths problem solving and writing. This exam is the basis of the National Merit Finalist scholarship eligibility selection. Students are ranked nationally --
*the PSAE taken in junior year, a local state exam designed to rate students' progress in achieving state-mandated standards --
*The ACT, also taken in junior year, a nationally administered general university admissions test that measures maths, science, English and reading ability. Scores are sent to universities a student applies for. Students are ranked nationally.
*SAT and SAT individual subject tests in junior year and/or beginning of senior year (national exams externally administered and ranked nationally)
*AP subject tests -- national exams done whatever year the student takes the AP class; students ranked nationally