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Table 3 Accuracy of predicted and recalled valuations of patients with Spinal Cord Injury (SCI) on Time Trade-Off (TTO) and Visual Analogue Scale (VAS) at the group level

From: Anticipated adaptation or scale recalibration?

 

N

T1 actual

T2 actual

T3 actual

T1 prediction of T3

T2 prediction of T3

T3 recall of T2

T1 prediction of T3 vs T3 actual

T2 prediction of T3 vs T3 acutal

T2 actual vs T3 recall of T2

  

Mean (SD)

Mean (SD)

Mean (SD)

Mean (SD)

Mean (SD)

Mean (SD)

t-value

t-value

tcxx value

TTO

44

0.43

0.62

0.69

0.61

0.68

0.61

1.48

0.11

0.44

(0.33)

(0.31)

(0.29)

(0.31)

(0.30)

(0.30)

VAS

44

0.60

0.67

0.65

0.76

0.75

0.59

3.24*

3.44**

3.26*

(0.18)

(0.15)

(0.20)

(0.13)

(0.14)

(0.18)

  1. Ratings of patients with SCI for their actual and predicted state of health on a TTO and a VAS, at baseline, a few weeks before discharge and six months after discharge. Actual change is compared with expected change using student’s t-test.
  2. **p < .001, *p = < .01.