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Table 17.9 Characteristics of the Community Balance and Mobility Scale

 
Reliability

Test-Retest: ICC=0.975 (Inness et al. 1999; TBI)

Internal Consistency: α=0.96 (Inness et al. 1999; TBI)

Validity

Face Validity: Items rated as relevant to the assessment of balance by PT’s (Inness et al. 1999; TBI).

Construct Validity: Correlated with gait variables: walking velocity (r=0.69), step length (r=0.75) and step time variability (r=-0.49). However, CBMS scores did not correlate significantly with measures of postural sway or with a measure of balance confidence (ABC).

Responsiveness SRM=1.26 (for CBMS change scores; Inness et al. 2011)
Tested for ABI/TBI patients? Developed for use in TBI population.
Other Formats N/A
Use by proxy? N/A