Evidence is insufficient because of: 1  The limited number or size of studies. 2  Important flaws in study design or methods. 3  Inconsistency of findings across individual studies. 4  Gaps in the chain of evidence. 5  Findings not generalizable to routine primary care practice. 6  Lack of information on important health outcomes.
Definition of jerk for English Language Learners. : 1  a stupid person or a person who is not well-liked or who treats other people badly. : 2  a quick pull or twist. : 3  a sudden sharp movement.
jerk 2. tr.v. jerked, jerkÂ·ing, jerks. To cut (meat) into long strips and dry in the sun or cure by exposing to smoke. adj. Being or relating to a method of barbecuing meat that has been seasoned and wrapped in leaves of the allspice tree: jerk chicken.