Regression-based norms for the FAS phonemic fluency test for ages 40–84 based on a Norwegian sample
Ingrid Myrvoll Lorentzen, Jacob Espenes, Erik Hessen, Knut Waterloo, Geir Bråthen, Santiago Timón‐Reina, Dag Aarsland, Tormod Fladby, Bjørn‐Eivind Kirsebom
Abstract
= 182 cognitively healthy adults reporting subjective cognitive decline (SCD). We found that years of education was the only significant predictor of FAS performance in our normative sample, accounting for 14.9% of the variance. Both the proposed regression-based norms and previously published discrete norms adequately adjusted for demographics in the independent sample. In contrast, the American norms underestimated the effect of education and overestimated the effect of age. While both the proposed Norwegian regression norms and the previously published discrete norms are suitable for use in Norway, the proposed regression norms may be less vulnerable to sub-stratification sample characteristics posed by discrete norming procedures, and thereby improve normative estimation.