The NAB consists of five domain-specific modules: Attention, Language, Memory, Spatial, and Executive Functions. A sixth module, Screening, allows the clinician to determine which of the other five domain-specific modules are appropriate to administer to an individual patient. Each of the six NAB modules is self-contained and may be administered independently of the other modules.

Modules

The Attention Module

Provides a marker of an individual’s attentional capacity, working memory, psychomotor speed, selective attention, divided attention and information processing speed.

The Language Module

Provides a marker of the severity of aphasia and related disorders of language production, comprehension and word-finding.

The Spatial Module

Provides a marker of the examinee’s visuoperceptual skills, attention to visual detail, visuoconstruction, right-left orientation, topographical orientation, and visual scanning.

The Memory Module

Provides a marker of an individual’s verbal explicit learning, visual explicit learning, verbal delayed free recall, visual delayed recognition memory, and verbal explicit learning and recognition of information likely to be encountered in day-to-day living. A stand-alone Memory Module Professional Manual and Scoring Program and special combination kits are available.

The Executive Functions Module

Provides a marker of planning, engaging with others effectively, problem solving, successfully interacting with the environment to get one’s needs met, judgement, conceptualisation, cognitive response set, mental flexibility, verbal fluency and generativity.

The Screening Module

Streamlines the assessment process by providing scores that quickly let you know whether further assessment should be conducted. It also helps to generate initial hypotheses regarding differential diagnosis and treatment recommendations and provides an estimate of the examinee’s functioning in a particular domain when more in-depth examination is either not warranted or not possible.

Administration

The NAB may be purchased by individual module kits versus packaged as a complete battery. Certain NAB tests are available for stand-alone purchase as well. Offering the combined strengths of both flexible battery and fixed battery, the NAB allows clinicians increased flexibility to focus on specific areas of concern.
Each of the 33 NAB tests has two equivalent, parallel forms that were created and normed simultaneously to facilitate reevaluation while avoiding practice effects.
Each of the five domain-specific NAB Modules includes a Daily Living test designed to be multifactorial in nature and related to real-world tasks of everyday living in order to evaluate constructs such as auditory and reading comprehension, simple calculations, problem-solving and decisional capacity.

Psychometrically Sound

All NAB tests were standardised on the same sample of more than 1,400 healthy adults.
Interrater reliability studies conducted on those NAB tests that require more subjective scoring indicated excellent agreement. A 6-month test-retest study (n = 95) resulted in very good temporal stability and provides important practice effect information. The reliability estimates for the NAB Index scores are excellent (e.g., Total NAB Index score r = .96).
Extensive validation evidence has been established through both exploratory and confirmatory factor analyses, criterion validity investigations, and several clinical validation studies. Additional validity studies included a comparison of the NAB with measures of functional independence in an inpatient rehabilitation hospital and an investigation involving a group of simulated malingerers who received the NAB, along with several existing measures of symptom validity.

Note: If you are purchasing a NAB module kit-with the exception of the Screening Module-we strongly recommend that you also purchase the NAB Administration, Scoring, and Interpretation Manual (Item: 5088-TM) and the NAB Demographically Corrected Norms Manual (Item: 5091-TM).

Sample Reports