Table 3: Ordinal Scales
Battery | Components | Scoring | Psychometrics |
Performance-Oriented Mobility Assessment (POMA) |
Balance subscale = 9 items Gait subscale = 8 items Takes ~10 mins to complete |
Range: 0 - 28 ≤ 18 - High fall risk ≥ 25 - Low fall risk |
Reliability: Pearson r =0.85 Validity: r = 0.91 (vs BBS) |
Mini-BESTest | Fourteen items Takes 10 - 15 mins to complete |
Item score: 0 - 2 | Test-retest reliability ICC = 0.96 Inter-rater reliability ICC = 0.98 Convergent reliability = r = 0.85 (vs. BBS) |
Berg Balance Scale (BBS) |
Task performance = 7 items Posture maintenance= 7 items Takes ~20 mins to complete |
Range: 0 - 56 ≤ 20- High fall risk 21 - 40- Moderate fall risk > 40 - Low fall risk |
Reliability: kappa coefficient = 0.98 Validity: r = 0.91 (vs POMA) Internal consistency: Cronbach α = 0.96 |
Brunel Balance | Hierarchy of 12 items Takes ~10 mins to complete |
Pass/fail at each level Patient progresses to next level until failure |
Coefficient of reproducibility1= 0.99 Assessment Coefficient of scalability (subjects)2 = 0.88 (BBA) Coefficient of scalability (items)2= 0.69 Item-Total Correlation = 0.34 - 0.84 Internal consistency: Cronbach α = 0.92 Reliability (kappa coefficient) = 1.0 Validity (Spearman rho; vs BBS) = 0.97 |