“…Further, even when patients and their caregivers are asked about their current treatment, they may not be capable of evaluating goal-concordance of care because they do not necessarily know what specific care they are receiving, or what that treatment is meant to achieve clinically. 24 To these points, others have demonstrated how humans have selective memory against adverse events and, separately, rationalize decisions to reduce cognitive dissonance, or in our case, post hoc perception of goal-concordance. 20,25 Of note, family-reports are reflected through several shifting lenses over time, all with imperfect information: their perception of the patients' goals, values, and treatments over time; their relationship to and perception of the patient; their own experience with the treatments; and the patients' outcomes, including whether the patient died (examined in more detail below).…”