Estrategias de resolución del PASAT en pacientes con Esclerosis Múltiple y viabilidad de una versión corta del test
- Evangelina Cores
- Sandra Vanotti
- Paula Moyano
- Mabel Osorio
- Daniel Politis
- Orlando Garcea
ISSN: 0718-0551
Year of publication: 2011
Volume: 6
Issue: 2
Pages: 81-85
Type: Article
More publications in: Revista Chilena de Neuropsicología
Abstract
The PASAT is probably the most used neuropsychological tool in the clinical practice with Multiple Sclerosis (MS) patients. This study intends to analyze strategies in the resolution of the PASAT and to establish the sensibility of short versions of 30 and 20 items each. Method: 38 patients with Relapsing Remitting MS (RRMS) and 32 healthy controls with similar age and years of education were assessed with a neuropsychological battery. Results: There was a significant difference in PASAT-3 between MS and control group in the total correct answers (Z = -2,714, p = ,007), chunkings (Z = -2,478, p = ,013) and dyads (Z = -2,647, p = ,008). Effect sizes were moderate. In relation to the original 60 items version, the 30 items version demonstrated an 85% of sensibility with only two false negatives and the 20 items version demonstrated a 57% of sensibility. Discussion: Punctuation of chunks and dyads is useful for the assessment of resolution strategies of the test. The short version of 30 items is appropriate for its use in clinical neuropsychology.