The Stroop Effect in Greek Healthy Population: Normative Data for the Stroop Neuropsychological Screening Test

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Abstract
The Stroop Test is a quick and frequently used measure in screening for brain damage, dysfunction of selective attention, and cognitive flexibility. The purpose of the present study is to provide normative data for Trenerry's Stroop Neuropsychological Screening Test (SNST) in a sample of 605 healthy Greek participants (age range: 18–84 years, education range: 6–18 years). Results revealed that age and education significantly contributed to SNST scores, accounting for a significant proportion of variance in time needed to complete the color task and in the interference Color–Word score. Performance on most of the measures decreases with increasing age and lower levels of education. Normative data stratified by age and education for the Greek adult population are provided as a useful set of norms for clinical practice.