Y. H. DONG ET AL. 15
reliability, convergent validity and practice effects of the
RBANS. Third, the test-retest interval was short, at a
span of 2 weeks, and may not be in line with clinical
practice of repeat testing at 6 months or a year. Therefore,
future studies with a longer span of test-retest duration
will provide more information about the RBANS for
clinical utility.
In conclusion, The RBANS has good test-retest reli-
ability and convergent validity, while RBANS supple-
mented with CTT and mBNT have demonstrated excel-
lent convergent validity. In addition, the practice effects
were only demonstrated in immediate memory and visu-
ospatial function while other index and total scale scores
are spared of practice effects within the short span of a
2-week interval. Therefore, RBANS or RBANS supple-
mented with CTT and mBNT may be adopted for routine
clinical practice in memory clinics.
5. Acknowledgements
This study is funded by a Memory Ageing Cognition
Center (MACC) pilot grant (NMRC/CG/NUHS/ 2010)
from the National Medical Research Council of Singa-
pore. Y. Dong is currently receiving research support
under the NMRC fellowship training award. The authors
thank the research team from NUHS MACC for data
collection and all participants for their involvement.
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