Table 2

Physician Trust in the Patient, Pratt Matrix D

ItemDescription (Root: “How confident are you that this patient will…”)PSCD
1Provide all the medical information you need?.
4Let you know when there has been a major change in his or her condition?.91−.−0.05
5Tell you about all medications and treatments he or she is using?.
6Understand what you tell him/her?.
9Follow the treatment plan you recommend?.
11Be actively involved in managing his/her condition/problem?.94−.−0.05
12Tell you if he/she is not following the treatment plan?.
14Respect your time?.
15Respect personal boundaries?.
16Not make unreasonable demands?−.−0.011.01
17Not manipulate the office visit for secondary gain (eg, for inappropriate disability certification or prescription of controlled substances)?.
18Keep his or her appointments?.
  • C = communality (the percentage of variance in each item explained by the 2 factors); D = P × S/C (the Pratt D value, the proportion of the explained variance attributable to each factor; a measure of the relative importance of each factor to a given item); F1 = Factor 1; F2 = Factor 2; P = pattern coefficient (the equivalent of the standardized partial regression coefficient, ie, slope of a factor on the item); S = structure coefficient (the equivalent of the simple Pearson correlation between an item and each factor).

  • Note: Factor 1 (Patient Role) is composed of items 1, 4, 5, 6, 9, 11, 12, and 18; Factor 2 (Respect for Boundaries) is composed of items 14, 15, 16, and 17.