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N-Back Verbal
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Field of Application+

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Detailed Description+

Assesses verbal working memory.
One of the most important tasks performed by working memory is to maintain and update verbal material (visual material is assessed by the test N-Back non-verbal NBN). The test uses the N-back paradigm.
The NBV makes demands on both (a) a specific function of verbal working memory, the updating of contents, and (b) the ability to operationalize verbal working memory “overall”. Disorders of working memory occur in a number of clinically relevant illnesses and injuries, such as Alzheimer's disease, Parkinson's disease and ADHD. The test is therefore used mainly in clinical neuropsychology.

Test forms+

S1: 2 back standard form
S2: 2 back parallel form
S3: 3 back standard form
S4: 3 back parallel form

Task+

Consonants are presented one after the other. The respondent’s task is to state whether the consonant currently displayed is identical to the one shown two places back (2-back paradigm) or three places back (3-back paradigm). If it is, the respondent presses a button as quickly as he can.

Dimensions+

Memory

Languages+

Hungarian

Turkish

Dutch

English (USA)

French

Italian

Portuguese

Spanish

German

Polish

Russian

Chinese

Czech

Hindi

Slovene

Duration+

approx. 9-11 minutes, depending on test form

Age+

Norms for ages 15+.

Test administration+

Controlled Mode


Scoring+

The following main variable is scored:

Correct: Measure of the ability to recall memory representations from short- and long-term memory, store them in the short term and continuously update them.

The subsidiary variables Mean time “correct”/”incorrect” function as a measure of working speed and reaction speed; they are independent of the quality of the respondent’s answers.

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Products specifications
LanguagesChinese
LanguagesCzech
LanguagesDutch
LanguagesEnglish (USA)
LanguagesFrench
LanguagesGerman
LanguagesHindi
LanguagesHungarian
LanguagesItalian
LanguagesPolish
LanguagesPortuguese
LanguagesRussian
LanguagesSlovene
LanguagesSpanish
LanguagesTurkish
Test informationwide norm spectrum <i class="fas fa-info-circle tooltips test-info" data-container="body" data-placement="top" data-toggle="tooltip" title="In tests with a wide norm spectrum the norms cover a wide age range (wider than ages 16-84), or multiple norm samples (at least two) are available."></i>
Test informationparallel test form <i class="fas fa-info-circle tooltips test-info" data-container="body" data-placement="top" data-toggle="tooltip" title="In tests with parallel forms at least one test form is available with content that is entirely equivalent to another form of the test. However, the parallel test forms use different item material."></i>
Test informationconforms to the Rasch-model <i class="fas fa-info-circle tooltips test-info" data-container="body" data-placement="top" data-toggle="tooltip" title="For a test that conforms to the Rasch model the validity of the Rasch model or a comparable probabilistic test theory model has been proved. This means that all the test's item groups have been proved to measure one dimension and to be fair for various sociodemographic groups (such as different age groups)."></i>
DimensionsMemory
Test typeSpecial Ability Tests