In Lebanon, a country where 15 years of civil war and economic collapse have left deep scars, older adults are aging under conditions that gerontology textbooks never cover. Memory and thinking have gone almost unstudied here: there was no instrument to measure them as reliably as in Europe or the United States. Researchers at the American University of Beirut took the international HCAP battery (a set of tests for assessing memory, language, and attention) and adapted it for an Arabic-speaking population for the first time.
Scientists translated the tests into the Lebanese dialect, replaced the letters used for verbal fluency with Arabic equivalents, and allowed participants to name landmarks instead of addresses. 3027 people over 60 from Beirut and the Bekaa Valley completed a 30–45-minute battery covering five domains: orientation, memory, language, visuospatial skills, and executive function. The data were then examined with confirmatory factor analysis to determine whether the tests truly measure a general cognitive level and its five components.
The model fit the data well: memory and executive function performed best. The overall cognitive score declined with age (correlation -0.41) and rose with education (above 0.5). Women with low education scored lower than men, but at higher education levels the difference disappeared. People in poor health and those with memory complaints also scored worse. Internal consistency of the tests was high (Cronbach's alpha 0.79–0.90).
Previously, the Arab world had only three validated tests, and none was suitable for large-scale research. The new battery opens the way to studying unique risk factors such as war and economic stress. The next step is to create normative scores for the Lebanese population and to classify mild cognitive impairment and dementia. Longitudinal follow-up of the same participants will help separate aging from generational effects.
The compass that once pointed to an unknown north is now calibrated. Lebanese doctors and researchers can use it in clinics and research projects, while neighboring Arab countries can adapt it for their own dialects. Thus a single study grows into a regional data network that will help us understand how the brain ages under conditions where clocks don't measure time but give it.
Lebanon has no standardized addresses, so the question "Where are you?" had to be rephrased: participants could name the nearest landmark, such as a mosque or a market. The analogy of a clock that "measures time" did not work, because in the local context a clock "gives time."
Not published on arXiv. Here are its page, the PDF and the formalization: you can check it yourself, not only read our account.