Fat removal procedures distinct from injection lipolysis, in that these procedures are device-based, while injection lipolysis relies solely on injections that are marketed as causing lipolysis. Liposuction is a type of cosmetic surgery that removes fat from the human body in an attempt to change its shape. Evidence does not support an effect on weight beyond a couple of months and it does not appear to affect obesity related problems. In the United States it is the most commonly done cosmetic surgery. Serious complications include deep vein thrombosis, organ perforation, bleeding, and infection. Death occurs in about one per ten thousand cases. The
Criterion-referenced test what they "should" know, as defined by the state. Both terms "criterion-referenced" and "norm-referenced" were originally coined by Robert Glaser. Unlike a criterion-reference test, a norm-referenced test indicates whether the test-taker did better or worse than other people who took the test. For example, if the criterion is "Students should be able to correctly add two single-digit numbers," then reasonable test questions might look like "formula_1" or "formula_2" A criterion-referenced test would report the student's performance strictly according to whether the individual student correctly answered these questions. A norm-referenced test would report primarily whether this student correctly answered more questions