Behavioral Inattention Test (BIT)

 

Behavioral Inattention Test (BIT) Evaluation Summary

  What does the tool measure? The BIT estimates the presence and the extent of visual neglect.
  What types of clients can the tool be used for? The BIT can be used with, but is not limited to clients with stroke.
  Is this a screening or assessment tool? Assessment
Time to administer The BIT takes 30 to 40 minutes to administer
  Versions BIT; BIT shortened version
Other Languages English, Chinese
Measurement Properties
  Reliability No studies have examined the internal consistency of the BIT.
– Two studies have examined the test-retest reliability of the BIT. All reported excellent test-retest reliability using Pearson correlation coefficient.
– No studies have examined the intra-rater reliability of the BIT.
– Two studies have examined the inter-rater reliability of the BIT and reported excellent inter-rater reliability using Pearson correlation coefficient.
  Validity

Content:
One study examined the content validity of the BIT and reported the item generation process when creating the measure.

Criterion:
Concurrent Validity:
No studies have reported the concurrent validity of the BIT in clients with stroke.
Predictive Validity:
One study examined the predictive validity of the BITB and reported that BITB scores measured at 10 days post-stroke is an excellent predictor of poor functional outcome at 3, 6 and 12 months post-stroke.

Construct:
Convergent/Divergent:
Three studies have examined the convergent validity of the BIT and reported excellent correlations between the BIT, the Occupational Therapy Checklist and the Barthel Index, along with adequate correlations with the Rivermead Activities of Daily Living Assessment.
Known Groups:
One study reported that BITC scores were able to distinguish between those with and without visual neglect.

  Floor/Ceiling Effects No studies have reported floor/ceiling effects of the BIT in clients with stroke.
  Sensitivity/specificity One study examined the specificity and sensitivity of the BIT and reported that both subtests are able to accurately identify individuals with visual neglect.
  Does the tool detect change in patients? No studies have reported the responsiveness of the BIT in clients with stroke
  Acceptability The tests are easy and simple to administer.
Feasibility The tests are easy to administer, simple and relatively unambiguous to score, and are sufficiently wide ranging to detect different forms of visual neglect.
How to obtain the tool? The BIT can be obtained from on the website:
http://www.pearsonclinical.com/psychology/products/100000138/behavioral-inattention-test-bit.html?Pid=015-8054-628&Mode=summary