Changes in family medicine resident self perception of JNC VI knowledge. This figure represents a significant post-intervention finding of significance in CPG attitude. This may represent an overestimation of actual knowledge, as there was not a corresponding demonstration of knowledge gain. Question 10A: How well do you think that you know the JNC VI Guideline? Likert Scale (1–5): 1 = no knowledge or utilization of JNC VI guideline – 5 = excellent knowledge and utilization of JNC IV guideline.