Three verbal fluency tasks: Normative data and convergent validity in Argentines over 50 years

MARTINO, PABLO; MAURICIO CERVIGNI; NELSON PORTILLO; MIGUEL GALLEGOS; DANIEL GUSTAVO POLITIS; MIGUEL Á. DE BORTOLI; VIVAS JORGE

Dementia & Neuropsycologia

Top Towers OFFICE Torre NORTE

Lugar: San Pablo; Año: 2022 p. 481 - 488

1980-5764

Verbal fluency tasks are frequently used in neuropsychological assessment, standing out for their easy applicationand good sensitivity to early cognitive impairment. However, in Argentina, the availability of updated norms is limited, especiallyfor the action fluency variant. There is also little evidence of validity. Objectives: The aim of this study was to obtain Argentinenorms for three verbal fluency tasks and to analyze their convergent validity. Methods: Using a nonprobability sampling method,303 Argentines from a nonclinical population (age mean=66.8, 50–91 years) were recruited to participate in this study. Thosewith medical conditions that could compromise neuropsychological performance were excluded. Three verbal fluency tasks(i.e., phonological, semantic, and action), the Montreal Cognitive Assessment (MoCA) test, and the Digit Span-WAIS III test wereadministered. Correlations and multiple regressions were subsequently performed. Results: Education and age significantlyexplained 11.8% of the variance in phonological fluency, 15.8% of the variance in semantic fluency, and 20.2% of the variancein action fluency. Hence, the normative data varied according to educational level and age group, with normal performancelimit values between 9 and 14 for phonological fluency, 11 and 18 for semantic fluency, and 8 and 17 for action fluency.Positive correlations were obtained between all verbal fluency tasks, as well as between the MoCA test and the Digit Span test.Conclusions: This study supports the applicability of three verbal fluency tasks in an Argentine context by providing age- andeducation-corrected norms and acceptable evidence of convergent validity.