Repeated assessment and practice effects of the written symbol digit modalities test using a short inter-test interval


Autoria(s): Pereira, D. R.; Costa, Patrício; Cerqueira, João José
Data(s)

2015

Resumo

The Symbol Digit Modalities Test (SDMT) is a widely used instrument to assess information processing speed, attention, visual scanning, and tracking. Considering that repeated evaluations are a common need in neuropsychological assessment routines, we explored test–retest reliability and practice effects of two alternate SDMT forms with a short inter-assessment interval. A total of 123 university students completed the written SDMT version in two different time points separated by a 150-min interval. Half of the participants accomplished the same form in both occasions, while the other half filled different forms. Overall, reasonable test–retest reliabilities were found (r = .70), and the subjects that completed the same form revealed significant practice effects (p < .001, dz = 1.61), which were almost non-existent in those filling different forms. These forms were found to be moderately reliable and to elicit a similar performance across participants, suggesting their utility in repeated cognitive assessments when brief inter-assessment intervals are required.

Identificador

Pereira, D. R., Costa, P., & Cerqueira, J. J. (2015). Repeated Assessment and Practice Effects of the Written Symbol Digit Modalities Test Using a Short Inter-Test Interval. Archives of Clinical Neuropsychology, 30(5), 424-434. doi: 10.1093/arclin/acv028

0887-6177

http://hdl.handle.net/1822/41702

10.1093/arclin/acv028

Idioma(s)

por

Relação

http://www.elsevier.com

Direitos

info:eu-repo/semantics/openAccess

Tipo

info:eu-repo/semantics/article