Test: Digit Span Forwards and Backwards

Norms available: Zulu norms for adults aged 18 – 29 and 30 – 50.

Where the norms can be obtained: The norms have been published in the following article: Singh, D., Joska, J.A., Goodkin, K., Lopez, E., Myer, L., Paul, R.H., John, S., & Sunpath, H. (2010).  Normative scores for a brief neuropsychological battery for the detection of HIV-associated neurocognitive disorder (HAND) among South Africans. Biomed Central, v. 3.

Or at the following website: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2843737