The Color Trails Test (CTT) was developed as a culturally fair analog of the Trail Making Test. In the present study, normative data for the CTT were developed for the Greek adult population and further the criterion validity of the CTT was examined in two clinical groups (29 Parkinson's disease [PD] and 25 acute stroke patients). The instrument was applied to 163 healthy participants, aged 19–75. Stepwise linear regression analyses revealed a significant influence of age and education level on completion time in both parts of the CTT (increased age and decreased educational level contributed to slower completion times for both parts), whereas gender did not influence time to completion of part B. Further, the CTT appears to discriminate adequately between the performance of PD and acute stroke patients and matched healthy controls.

We examined the utility of the Test of Everyday Attention for Children (TEA-Ch) for Greek children. Discrete and regression-based norms, controlling for demographic characteristics and intelligence, were derived from the performance of 172 children. We also assessed the ability of the TEA-Ch to differentiate children with ADHD-Combined Type (ADHD-C) from healthy matched peers. Children with ADHD-C displayed dysfunction in multiple attentional domains. Discriminant function analysis indicated that two subtests (Sky Search and Walk, Don’t Walk) correctly classified 84.2% of children with ADHD-C.

The present study examines the development of basic attentional functions (sustained attention, selective attention, flexibility and divided attention) in 172 elementary school children (6-12 years) by using representative subtests from both a computerized (KITAP) and a traditional battery (TEA-Ch). The results indicate significant age-related improvements between 8 and 10 years in all the attentional functions irrespective of the assessment tool. Specifically, the results from both instruments converge regarding the developmental rates for divided attention, sustained attention and flexibility. However, performance scores in KITAP suggest a developmental plateau after the age of 10 years, whereas TEA-Ch subtests seem to be more sensitive to uncovering attention performance differences beyond the age of 10.