title: Examining early literacy skill differences among children in Head Start via latent profile analysis.
abstract: The purpose of the present study was to determine whether there are systematic differences in literacy skills among children from less-advantaged households, using latent profile analysis. Early reading skills were measured using the Early Arithmetic, Reading, and Learning Indicators (EARLI; DiPerna, Morgan, & Lei, 2007) literacy tasks. Participants (N = 166) were 4-year-old children enrolled in Head Start. Results revealed three classifications of children: Profile 1 had the lowest overall literacy skill levels, with relative strength in expressive vocabulary and weaknesses in skills related to letter knowledge (i.e., Alphabet Recitation, Letter Naming); Profile 2 had the highest overall level of literacy skills and a relative strength on the Segmenting task; and Profile 3 showed the greatest variability across the EARLI probe scores, with a relative strength in Alphabet Recitation and weaknesses on tasks measuring phonemic and phonological awareness (i.e., Letter Sounds, Sound Deletion, and Segmenting). Repeated measures ANOVA revealed that, although students in each profile demonstrated skill growth over a 6-month period, significant skill differences still remained between profiles at the end of the preschool year.
authors.affiliation: Department of Educational and School Psychology.
authors.forename: Kate E
authors.initials: KE
authors.lastname: Norwalk
authors.affiliation: Department of Educational Psychology, School Psychology and Special Education.
authors.forename: James C
authors.identifier: 0000-0002-4663-9286
authors.initials: JC
authors.lastname: DiPerna
authors.affiliation: Department of Educational Psychology, School Psychology and Special Education.
authors.forename: Pui-Wa
authors.identifier: 0000-0002-8179-6623
authors.initials: PW
authors.lastname: Lei
authors.affiliation: Harvard Center for Population and Development Studies, Harvard University.
authors.forename: Qiong
authors.initials: Q
authors.lastname: Wu
mesh_terms: D002675:Child, Preschool; D018479:Early Intervention, Educational; D005260:Female; D006801:Humans; D008297:Male; D008433:Mathematics; D009511:New England; D010700:Phonetics; D011203:Poverty / Q000523:psychology; D011610:Psychosocial Deprivation; D011932:Reading; D014825:Vocabulary