Table 5.

Examples for Equation Predicting CCTI Understanding Scores

Example 1: Sample averages (i.e., CCTI Understanding of 26.8, Phonemic Fluency of 27.3, and HVLT Total of 19.3)

CCTI Understanding Predicted = 5.10 + (Phonemic Fluency*0.25) + (HVLT Total*0.79)

CCTI Understanding Predicted = 5.10 + (27.3*0.25) + (19.3*0.79)

CCTI Understanding Predicted = 27.

Example 2: Patient with CCTI Understanding of 28, HVLT Total of 21, and Phonemic Fluency of 27

CCTI Understanding Predicted = 5.10 + (Phonemic Fluency*0.25) + (HVLT Total*0.79)

CCTI Understanding Predicted = 5.10 + (21*0.25) + (27*0.79)

CCTI Understanding z-score = (observed – predicted) / SEE

CCTI Understanding z-score = (28 – 32) / 4.84 = −0.83

Note. CCTI = Capacity to Consent to Treatment Instrument, HVLT = Hopkins Verbal Learning Test