participant Codes for categorizing participants 2002-12-02 A hypothetical 3rd party extension for the CHILDES project, to permit age, sex and education of the participant to be represented, from section 4.2 of the CHAT Manual. AGE: This header specifies a speaker's age in years, months, and days, given in the form years;months.days as in 2;11.17 for 2 years, 11 months, and 17 days. To represent a range of several days for a given transcript, use this format: 2;11.17 - 2;11.28. Note that the dash is surrounded by spaces. If you do not know the child's age in days, you can simply use years and months. If you do not know the months, you can use this form: 6; SEX: This header indicates the gender of the speaker, as female or male. EDUCATION: This header specifies the speaker's highest grade level in school. Education is indicated by the integers from 0 to 20, where the numbers after 12 indicate years of college. For example, if the speaker was in the second year of graduate school, this would be represented as 18. contributor http://childes.psy.cmu.edu/manuals/CHAT.pdf