Quickly screens for neurocognitive deficits associated with right-hemisphere lesions.
Patricia A. Pimental and Jeffrey A. Knight

The Mini Inventory of Right Brain Injury- Second Edition (MIRBI-2) meets the need for a brief, standardized, right-brain injury screening instrument that yields severity levels for deficit areas. Test rationale has been updated to reflect current trends in neuropsychology.

In this new edition of the MIRBI-2, a revised Right-Left Differential Scale was created, with an updated cutoff score for right-brain impairment. Each item in the MIRBI-2 was re-evaluated using conventional item analysis to establish the underlying statistical foundation.

The MIRBI-2 Test Booklet was revised to include more user-friendly areas for recording patient information, as well as revised criteria for scoring patient responses. A tear-off Response Pad has been added for additional convenience, featuring a Response Sheet for items 1 and 2 on one side, the Reading Ability paragraph for completion of items 7 and 8 on the other. A caliper is included for convenience, and to standardize administration.

The MIRBI-2 was normed on 128 right-brain injured people. Reliability was estimated by coefficient alpha (.84). All item discrimination coefficients exceeded .3 acceptable levels and ranged from .37 to .81, median: .57. Inter-rater reliability was .99. Concurrent validity was very good, and included the study of left-brain injured participants and control participants without brain injury.

Many new validity studies have been conducted, with particular emphasis on the relationships of MIRBI-2 scores to other measures of neurocognitive impairment.

The MIRBI-2 Kit includes a Manual, 25 each of the Examiner Record Booklets, Report Forms and Response Sheets and a caliper.