Question 16 Research is a type of systematic investigation that is empirical in nature and is designed to contribute to public knowledge. True False Question 22 A relationship in which higher levels of one variable are associated with lower levels of another is best described as curvilinear a. accelerated b. indirect/inverse C. d. direct Question 27 Systematic observations are used to establish evidence in research. True False Question 29 Organizational evidence is never appropriate evidence for EBM practice. True False