Catherine Bergego Scale (CBS)

 

Catherine Bergego Scale (CBS) Evaluation Summary

  What does the tool measure? The CBS measures unilateral behavioural neglect.
  What types of clients can the tool be used for? The CBS is designed for use with individuals with stroke who have hemispatial neglect.
  Is this a screening or assessment tool? Assessment
Time to administer The CBS takes approximately 30 minutes to administer.
  Versions There is one version of the CBS checklist for use by clinicians. There is also a patient-administered questionnaire that can be used to measure self-awareness of neglect (anosognosia).
Other Languages Not reported
Measurement Properties
  Reliability

Internal consistency:
Five studies have examined the internal consistency of the CBS and have reported adequate to excellent internal consistency, using Spearman rank.

Intra-rater:
No studies have reported on the intra-rater reliability of the CBS.

Inter-rater:
One study examined the inter-rater reliability of the CBS and reported adequate to excellent inter-rater reliability, using kappa and correlation coefficients.

Test-retest:
No studies have reported on the test-retest reliability of the CBS.

  Validity

One study has examined the internal validity of the CBS and found unidimensionality of items by Rasch analysis.

Content:
No studies have reported on the content validity of the CBS.

Criterion:
Predictive Validity:
No studies have reported on the predictive validity of the CBS.

Concurrent Validity:
Five studies has examined the concurrent validity of the CBS with other neglect tasks in patients with right hemisphere stroke and reported excellent correlations with Albert’s Test, Behavioral Inattention Test subtests, the Bells test, a reading task and a writing task. Adequate to excellent correlations were reported with Ogden’s scene drawing task, overlapping figures and a daisy drawing task. Poor to adequate correlation were reported with Bisiach et al.’s (1986) scale of awareness of visual and motor neglect.

One study has examined the concurrent validity of the CBS with other neglect tasks in patients with left hemisphere stroke and reported adequate correlations with the Bells test, but no significant correlation with a line bisection test.

Construct:
One study conducted a factor analysis and revealed one underlying factor.

Known Groups:
Two studies have examined the known groups validity of the CBS and reported that the CBS is able to distinguish between patients with/without neglect and patients with/without visual field deficits. The CBS does not differentiate between patients with/without depression.

Convergent/Discriminant Validity:
Two studies have examined the convergent validity of the CBS and reported an excellent correlation with the Barthel Index and an adequate correlation with the Functional Independence Measure and the Postural Assessment for Stroke Scale, using Spearman’s rank correlation coefficient.

  Floor/Ceiling Effects One study reported adequate floor/ceiling effects.
  Does the tool detect change in patients? Two studies have reported that the CBS can detect change in neglect.
  Acceptability Not reported
Feasibility The CBS is straightforward and easy to administer. While there is no formal training, administration of the CBS requires clinicians to possess a sound understanding of neglect and its behavioral manifestations. There is no manual to aide administration or scoring.
How to obtain the tool? The CBS can be accessed in the article by Azouvi et al. (1995).