The Infoture Natural Language Corpus and Database

Contains approximately:

• 61,400 hours from 4,700 recordings contributed by 460 participating families
• 2,130 hours from 130 recordings from 30 families of children with a diagnosed language delay
• 1,050 hours from 70 recordings from 20 Spanish-speaking families
• 303 transcribed hours from 215 children
  

Normative Sample:

• 329 families, including an 80-family longitudinal subsample
• 51,770 hours from 4,150 recordings
• 31,830 hours from 2,320 longitudinal sample recordings spanning 2 years
• Subsamples by key child gender:
  • 26,900 hours from 2,145 recordings from 162 families with girls
  • 24,870 hours from 2,005 recordings from 167 families with boys
• Subsamples by mother’s education:
  • Some High School/GED             9,615 hours from 74 families
  • High School/Trade Diploma       11,400 hours from 79 families
  • A.A./Some College                   16,940 hours from 92 families
  • B.A./More College                    13,815 hours from 84 families
• Subsamples by income:
  • Income of less than $20K          10,590 hours from 77 families
  • Income of $20K - $60K             26,620 hours from 164 families
  • Income of greater than $60K     14,560 hours from 88 families

The Infoture Natural Language Corpus is not included with either LENA Pro or Research software but may be made available to qualified researchers.

Presently, the database comprises approximately 3,000 12- to 16-hour recording sessions with demographic information, bringing the corpus collection of naturalistic, in-home recordings to more than 61,000 hours (including over 1,000 hours of recordings contributed from Spanish-speaking households). Many files are transcribed. The corpus is always growing. There are over 350 child participants thus far. All children have been evaluated on multiple occasions using multiple language and cognitive measures such as PLS, REEL, CDI, and CAT/CLAMS. Parent releases are on file so that the corpus may receive IRB approval for most research uses.

Please call 303.545.9696 to discuss your research plans and for inquiries on pricing to access this corpus. For more information on our research and purpose, visit www.infoture.org.

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