Does LENA technology work in all languages?

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Caregivers can use LENA technology in any language to see changes over time. LENA has primarily been used in English and Spanish, and studies have been published to validate adult word counts in English, Spanish, European French, the Shanghai dialect of Mandarin Chinese, and Swedish. Researchers are working on validation studies in several other languages, including Arabic, Hebrew, Korean, Norwegian, Danish, and Brazilian Portuguese. For other languages, the word count may not be 100 percent accurate, but we would expect that the error rate would be consistent, so users can still confidently measure change over time and see times of high talk and turns.