Johnson and Thornton Et Al

Johnson and Thornton et al.(2011) found that with respect to levels of social concordance

A) low levels were associated with more favourable patient perceptions of care
B) high levels were associated with less favourable patient perceptions of care
C) high levels were associated with less favourable patient affect
D) may have a cumulative effect on the patient -physician interaction
E) may be irrelevant to patient perceptions of care