Summary:Language-of-administration effects on CCAB performance were confined to speeded measures, not cognitive accuracy or control tasks. Spanish-language administrations were associated with longer response and completion times.Response time differences were consistent across executive function, processing speed, working memory, and visuospatial domains, whereas accuracy remained equivalent across languages.. Figure Drawing, a task without a speeded response requirement, showed no English-language advantage, arguing against generalized motor or tablet-familiarity effects.Results support the development of speed-adjusted CCAB-Español norms and caution against interpreting slower Spanish-language response times as evidence of elevated cognitive risk.

Discussion: Speed differences were largest on the least cognitively demanding tasks and diminished as task complexity increased, suggesting testing-context effects rather than domain-specific cognitive impairment. As cognitive demands increased, task complexity became the primary constraint on performance, reducing the influence of language-related differences in response speed. While the mechanisms underlying these effects cannot be determined from this particular data, factors such as stereotype threat, acculturation, or limited prior exposure to computerized testing may contribute to slower response times during speeded tasks without affecting accuracy. These findings have important implications for equitable dementia screening in Latino populations, and support the implementation of language-and-population specific normative standards. Future studies should directly assess acculturation, testing familiarity, and technology experience to better characterize the sources of observed performance differences.