I was on the same boat. My Kaplan qbank was consistently between 55-59% no matter how many questions I did or remediated on. Kaplan's rationale didn't help at all. What helped me was..listened to Mark K. My qbank score immediately increased to 60-68%. I just took my readiness test and scored 72% on it. Also, I only used the first step of the decision which is distinguishing "assessment vs implementation'. Good luck studying