14. What is the operational definition of the following study variable: LDL? A) The study had three outcome variables: hemoglobin A1C, LDL, and BP. B) Chi-square analyses were used to evaluate the...

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Extracted text: 14. What is the operational definition of the following study variable: LDL? A) The study had three outcome variables: hemoglobin A1C, LDL, and BP. B) Chi-square analyses were used to evaluate the difference in the percent of participants reaching target goals for each outcome variable. C) Data were extracted from the medical record using a clinic based data registry system. The LDL was dichotomized as to whether or not the participant reached the recommended level. D) The authors do not give an operational definition for the LDL variable.