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dc.contributor.advisorKirsebom, Bjørn-Eivind
dc.contributor.advisorWaterloo, Knut
dc.contributor.authorLorentzen, Ingrid Myrvoll
dc.contributor.authorEspenes, Jacob
dc.contributor.authorHessen, Erik
dc.contributor.authorWaterloo, Knut
dc.contributor.authorBråthen, Geir
dc.contributor.authorTimón, Santiago
dc.contributor.authorAarsland, Dag
dc.contributor.authorFladby, Tormod
dc.contributor.authorBjørn-Eivind, Kirsebom
dc.date.accessioned2023-03-22T05:05:20Z
dc.date.available2023-03-22T05:05:20Z
dc.date.issued2023-01-06en
dc.description.abstractThe FAS phonemic fluency test is a commonly used neuropsychological test of executive function and processing speed. Although Norwegian discrete norms have been developed for the FAS test, American regression-based norms are frequently used by clinicians in Norway. However, language and cultural differences impact performance on the FAS test, and using foreign norms may not be appropriate. Moreover, while discrete norming relies on stratified subgroups of demographics, regression-based norming uses the entire sample to estimate the influence of demographics on performance and may thus improve normative estimates. Here we develop regression-based norms for the FAS phonemic fluency test based on n = 204 healthy Norwegian controls between the ages 40−84 from the Norwegian Dementia Disease Initiation cohort (DDI). We compare the proposed regression norms to published Norwegian discrete norms and American regression-based norms in an independent sample of n = 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.en_US
dc.identifier.urihttps://hdl.handle.net/10037/28807
dc.language.isoengen_US
dc.publisherUiT Norges arktiske universitetno
dc.publisherUiT The Arctic University of Norwayen
dc.rights.holderCopyright 2023 The Author(s)
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0en_US
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)en_US
dc.subject.courseIDPSY-3031
dc.subjectNeuropsychologyen_US
dc.subjectVDP::Social science: 200::Psychology: 260::Other psychology disciplines: 279en_US
dc.subjectVDP::Samfunnsvitenskap: 200::Psykologi: 260::Andre psykologiske fag: 279en_US
dc.titleRegression-based norms for the FAS phonemic fluency test for ages 40–84 based on a Norwegian sampleen_US
dc.typeMastergradsoppgaveno
dc.typeMaster thesisen


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Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)