Table 3.
Convergent and Discriminant Validity
| Combined Sample (N = 385) | |||||
|---|---|---|---|---|---|
| Discriminant Validity | |||||
| TBI-CareQOL Measure | Convergent Validity | RAND-12 Physical Component |
CAS Satisfaction |
CAS Ideology | CAS Mastery |
| TBI-CareQOL Specific Anxiety CAT | PROMIS Anxiety 0.63 | −0.21 | −0.40 | 0.07* | −0.31 |
| TBI-CareQOL Caregiver Strain CAT | CAS Burden −0.79 | −0.24 | −0.24 | 0.07* | −0.37 |
| TBI-CareQOL Feeling Trapped CAT | PROMIS Social Isolation 0.68 PROMIS Ability to Participate in SRA −0.75 |
−0.21 | −0.14 | 0.15 | −0.31 |
| TBI-CareQOL Feelings of Loss - Self CAT | TBI-QOL Grief/Loss 0.75 | −0.28 | −0.30 | 0.11 | −0.33 |
| TBI-QOL Resilience SF | NIH Self-Efficacy 0.62 Neuro-QoL Positive Affect and Well-Being 0.66 |
0.25 | 0.32 | −0.04* | 0.35 |
| Neuro-QoL Positive Affect and Well Being CAT | NIH General Life Satisfaction 0.75 | 0.25 | 0.31 | 0.01* | 0.31 |
| Neuro-QoL Positive Affect and Well-Being SF | NIH General Life Satisfaction 0.74 | 0.25 | 0.35 | 0.04* | 0.34 |
| NIH General Life Satisfaction CAT | Neuro-QoL Positive Affect and Well-Being 0.75 | 0.29 | 0.34 | 0.04* | 0.36 |
| NIH Perceived Stress CAT | TBI-CareQOL Caregiver Strain 0.68 CAS Burden −0.70 |
−0.23 | −0.35 | 0.07* | −0.45 |
| NIH Self-Efficacy CAT | TBI-QOL Resilience 0.62 | 0.22 | 0.30 | −0.06* | 0.39 |
| PROMIS Sleep Related Impairment CAT |
PROMIS Fatigue 0.84 | RAND-12 Mental Health −0.70 | −0.26 | 0.06* | −0.38 |
| PROMIS Sleep Related Impairment SF | PROMIS Fatigue 0.86 | RAND-12 Mental Health −0.70 | −0.25 | 0.06* | −0.39 |
| Caregivers of Civilians with TBI (n = 218) | |||||
| Discriminant Validity | |||||
| TBI-CareQOL Measure | Convergent Validity | RAND-12 Physical Component |
CAS Satisfaction |
CAS Ideology | CAS Mastery |
| TBI-CareQOL Specific Anxiety CAT | PROMIS Anxiety 0.59 | −0.16 | −0.43 | 0.03* | −0.31 |
| TBI-CareQOL Caregiver Strain CAT | CAS Burden −0.76 | −0.21 | −0.28 | 0.01* | −0.41 |
| TBI-CareQOL Feeling Trapped CAT | PROMIS Social Isolation 0.58 PROMIS Ability to Participate in SRA −0.71 |
−0.21 | −0.19 | 0.10* | −0.35 |
| TBI-CareQOL Feelings of Loss - Self CAT | TBI-QOL Grief/Loss 0.72 | −0.30 | −0.34 | 0.07* | −0.38 |
| TBI-QOL Resilience SF | NIH Self-Efficacy 0.62 Neuro-QoL Positive Affect and Well-Being 0.68 |
0.26 | 0.26 | −0.14 | 0.35 |
| Neuro-QoL Positive Affect and Well Being CAT | NIH General Life Satisfaction 0.71 | 0.26 | 0.27 | −0.04* | 0.34 |
| Neuro-QoL Positive Affect and Well Being SF | NIH General Life Satisfaction 0.71 | 0.24 | 0.29 | 0.01* | 0.35 |
| NIH General Life Satisfaction CAT | Positive Affect and Well-Being 0.71 | 0.31 | 0.50 | 0.00* | 0.40 |
| NIH Perceived Stress CAT | TBI-CareQOL Caregiver Strain 0.65 CAS Burden −0.63 |
−0.14 | −0.32 | 0.04* | −0.46 |
| NIH Self-Efficacy CAT | TBI-QOL Resilience 0.62 | 0.22 | 0.26 | −0.09* | 0.39 |
| PROMIS Sleep Related Impairment CAT | PROMIS Fatigue 0.78 | RAND-12 Mental Health −0.64 | −0.21 | 0.05* | −0.37 |
| PROMIS Sleep Related Impairment Short Form | PROMIS Fatigue 0.80 | RAND-12 Mental Health −0.66 | −0.22 | 0.04* | −0.38 |
| Caregivers of Service Members/Veterans with TBI (n = 167) | |||||
| Discriminant Validity | |||||
| TBI-CareQOL measure | Convergent Validity | RAND-12 Physical CAS |
CAS Satisfaction |
CAS Ideology | CAS Mastery |
| TBI-CareQOL Specific Anxiety CAT | PROMIS Anxiety 0.62 | −0.36 | −0.54 | −0.02* | −0.30 |
| TBI-CareQOL Caregiver Strain CAT | CAS Burden −0.76 | −0.33 | −0.34 | 0.00* | −0.30 |
| TBI-CareQOL Feeling Trapped CAT | Social Isolation 0.69 Ability to Participate in SRA −0.72 |
−0.20* | −0.27 | 0.04* | −0.26 |
| TBI-CareQOL Feelings of Loss – Self CAT | TBI-QOL Grief/Loss 0.77 | −0.20* | −0.37 | 0.04* | −0.22 |
| TBI-Qol Caregiver Resilience SF | NIH Self-Efficacy 0.64 Neuro-QoL Positive Affect and Well-Being 0.63 |
0.22 | 0.42 | 0.14* | 0.35 |
| Neuro-QoL Positive Affect and Well Being CAT | NIH General Life Satisfaction 0.81 |
0.21 | 0.43 | 0.14* | 0.25 |
| Neuro-QoL Positive Affect and Well Being Short Form | NIHTB General Life Satisfaction 0.80 |
0.26 | 0.49 | 0.14* | 0.31 |
| NIH General Life Satisfaction CAT | Positive Affect and Well-Being 0.81 | 0.23 | 0.49 | 0.15* | 0.29 |
| NIH Perceived Stress CAT | TBI-CareQOL Caregiver Strain 0.70 CAS Burden −0.76 |
−0.43 | −0.45 | 0.03* | −0.43 |
| NIH Self-Efficacy CAT | TBI-QOL Resilience 0.64 | 0.24 | 0.35 | −0.01* | 0.40 |
| PROMIS Sleep Related Impairment CAT | PROMIS Fatigue 0.87 | RAND-12 Mental Health −0.61 | −0.41 | −0.06* | −0.38 |
| PROMIS Sleep Related Impairment Short Form | PROMIS Fatigue 0.90 | RAND-12 Mental Health −0.61 | −0.38 | −0.03* | −0.39 |
Note: All p-values < .05 unless otherwise indicated. PROMIS = Patient Reported Outcomes Measurement Information System; Neuro-QoL = Quality of Life in Neurological Disorders; TBI-QOL = Traumatic Brain Injury - Quality of Life; TBI-CareQOL = Traumatic Brain Injury Caregiver Quality of Life; NIH = National Institutes of Health Toolbox; CAS = Caregiver Appraisal Scale; CAT = Computer Adaptive Test; SF = Short Form
*
p>.05