As can be seen in Table 2, the positive correlation between self-ratings on the KBCI unawareness scale and months postinjury indicates that within this sample of individuals with moderate to severe TBI, patients reported greater problems on the unawareness scale as time postinjury increased (r = 0.
To address these issues, we conducted three sets of analyses: (1) concordance patterns of self-other ratings, (2) frequency of unawareness subgroups defined by KBCI normative data, and (3) uniformity of unawareness of problems in subgroups across different types of behavioral domains (e.
Self-other discrepancy ratings were calculated for each of the eight KBCI scales for both pre--and postinjury functioning.
Those patients whose self-ratings suggested intact awareness (according to normative comparisons on the KBCI unawareness scale, i.
A mixed model ANOVA was conducted for each KBCI scale (except unawareness, which defined the subgroups).
Follow-up t-tests of simple main effects on these four KBCI scales revealed that self--versus other ratings did not differ in either the aware per both or the unaware per both subgroups for either pre--or postinjury ratings.
Two additional KBCI scales showed similar threeway interaction patterns (Figure 2) and approached statistical significance: emotional adjustment (p = 0.
Each of the eight KBCI scales was significantly elevated postinjury compared with preinjury.
The pattern of correlations between injury severity and time postinjury with self--versus other ratings on the KBCI unawareness scale suggests that as time postinjury increases, individuals with TBI become more accurate in their awareness ratings.
In fact, using normatively based self--versus other ratings on the KBCI unawareness scale, we found that 39 percent of the sample had no problems with awareness (aware per both).
Nevertheless, significant group differences were found for most KBCI scales, both in the full sample and in the unawareness subgroups.
Sensitivity of the KBCI to emotional and behavioral problems [abstract].