"Supplement to American Speech, volume 89."

Includes bibliographical references.

The question -- The adolescent peak hypothesis: linguistic lifecycles and language change -- Limits of the apparent time construct and the linguistic individual -- Adolescent peak as evidence for language change -- Evidence for age-grading -- Age-grading and life-stage change in AAE -- Life-stage variation: evidence from ethnographic studies and second dialect research -- Child language variation -- Sociolinguistic variation and the child -- Children in SDA research -- Adolescents -- Ethnographic studies of adolescence -- Adolescent linguistic plasticity and educational institutions as a locus of contact -- Emerging adults -- Adult SDA and longitudinal research -- Second dialect acquisition for adults -- Adult panel studies -- Sociolinguistic motivations and restrictions on lifespan change -- Contextualizing African American English vowels -- Description of the AAE vowel system -- Similarities and distinctions between the AAVS and the European American SVS -- AAVS as part of AAE: evidence from perception studies and regional distribution -- Social evaluation of African American English vowels -- AAE vowels and sound change -- A brief history on the study of aae participation in regional sound changes -- Evidence for mutual influence between AAE and PRV vowel systems -- Factors that potentially influence AAE and PRV interaction -- The linguistic ecology of FPG -- Rural Eastern and Piedmont North Carolina -- Urban Piedmont North Carolina -- The database and the analysis -- Frank Porter Graham project -- Participants -- Field sites -- Sound file selection -- Data extraction -- Selection of normalization procedure -- Details of normalization procedure chosen for the current analysis -- Independent variables considered in the analysis -- How do children change their vowel pronunciations as they age? -- Statistical analysis for group change across time -- Analysis of school demographic data -- Group results for four time points -- Phonetic environment -- Formality -- Sex differences -- Group change across time -- Participation in the AAVS by field site -- Exploration of vowel change by field site -- Discussion of group results -- Individual change -- Stable systems and life time change: a comparison across linguistic subsystems -- Group level comparisons for trajectories of morphosyntactic, consonantal, and vocalic change

Gift Gift 23 Jul 2019 294496 $6,300 Prof. Joan H. Hall