Adaptation and initial validation of the Czech version of Neuropsychological Assessment Battery Screening Module
Abstrakt
Objective: Neuropsychological Assessment Battery (NAB) is a relatively new and complex neuropsychological tool that tests five cognitive domains and offers a full profile of cognitive functioning. The adaptation of such method into Czech language is needed.
The aim of this study is to test psychometric properties of Czech version of NAB Screening module (NAB-SM), compare the performance of Czech healthy individuals with American standardization sample (N=1 448) and test convergent validity using the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS). Participants and methods: 83 healthy volunteers (age M = 38,0 years, SD = 16,7 ; education M = 16,2 years, SD = 2,9 ) were tested by the NAB-SM.
We administered RBANS to twenty-three research participants. Demographic and medical information was also collected.
Results: Statistical analysis showed that Czech healthy volunteers obtained significantly different scores (p< .001) in 7 of 14 subtests (S-N&LA-eff, SHL-irg, SHL-drg, S-VIS, S-DES, S-MAZ and S-WGN). These scores were higher compared to the American sample.
Convergent validity analysis showed significant correlation of NAB-SM scores with expected measures of RBANS ranging from r=0,43 to r=0,69. The only exception was the relationship between Screening - Spatial Domain Score (NAB) and Visuoconstructional skills (RBANS) that lack significant correlation.
Conclusions: We performed a translation of and adaptation of NAB-SM into Czech. Although the sample size was small for the standardization study and the Czech sample differs in demographic characteristics that have impact on observed results, the analysis confirmed adequate measurement properties of the Czech version.
Our findings support the convergent validity of NAB-SM Czech version, suggest that NAB-SM can be used, and expand the repertoire of diagnostic methods available for Czech neuropsychologists.