This study examined the dimensionality of caregivers’ child-directed talk and the association of child directed talk and children’s language skills at age of 3 years in a sample of 63 low-SES dyads in low-SES homes. Exploratory factor analysis identified that caregivers’ child directed talk is characterized by two dimensions: quantity and complexity. The quantity factor consisted of utterances per minute, total number of words, and type-token ratio, whereas the complexity factor included mean length of utterance and the percentage of complex utterances. After controlling for covariates (e.g. child age, race, maternal education, and language used at home), CDT complexity was significantly related to children’s receptive and expressive language skills, however, this association was not significant for CDT quantity. These results have important implications for intervention development.
AlbersCAGrieveAJ (2007) Test review: Bayley, N. (2006). Bayley scales of infant and toddler development–third edition. San Antonio, TX: Harcourt assessment. Journal of Psychoeducational Assessment25(2): 180–190.
2.
BayleyN (2006) Bayley Scales of Infant and Toddler Development–Third Edition: Administration Manual. San Antonio, TX: Harcourt Assessment.
3.
BelleDDoucetJ (2003) Poverty, inequality, and discrimination as sources of depression among US women. Psychology of Women Quarterly27(2): 101–113.
4.
CabellSQJusticeLMLoganJAR, et al. (2013) Emergent literacy profiles among prekindergarten children from low-SES backgrounds: Longitudinal considerations. Early Childhood Research Quarterly28(3): 608–620.
5.
ClarkEV (2003) First Language Acquisition. New York, NY: Cambridge Univeristy Press.
6.
CostelloABOsborneJ (2005) Best practices in exploratory factor analysis: Four recommendations for getting the most from your analysis. Practical Assessment, Research, and Evaluation10(1): 7.
7.
DohrenwendBS (1985) Social status and responsibility for stressful life events. Issues in Mental Health Nursing7(1–4): 105–127.
8.
Ferjan RamírezNLytleSRFishM, et al. (2019) Parent coaching at 6 and 10 months improves language outcomes at 14 months: A randomized controlled trial. Developmental Science22(3): e12762.
9.
FernaldAMarchmanVAWeislederA (2013) SES differences in language processing skill and vocabulary are evident at 18 months. Developmental Science16(2): 234–248.
10.
GolinkoffRMHoffERoweML, et al. (2019) Language matters: Denying the existence of the 30-million-word gap has serious consequences. Child Development90(3): 985–992.
11.
HartBRisleyTR (1995) Meaningful Differences in the Everyday Experiences of Young American Children. Baltimore, MD: Paul H. Brooks.
12.
HoffE (2003) The specificity of environmental influence: Socioeconomic status affects early vocabulary development via maternal speech. Child Development74(5): 1368–1378.
13.
HoffE (2006) How social contexts support and shape language development. Developmental Review26(1): 55–88.
14.
HoffE (2013) Interpreting the early language trajectories of children from low-SES and language minority homes: Implications for closing achievement gaps. Developmental Psychology49(1): 4–14.
15.
Hoff-GinsbergE (1991) Mother-child conversation in different social classes and communicative settings. Child Development62(4): 782–796.
16.
HogartyKYHinesCVKromreyJD, et al. (2005) The quality of factor solutions in exploratory factor analysis: The influence of sample size, communality, and overdetermination. Educational and Psychological Measurement65(2): 202–226.
17.
HurtadoNMarchmanVAFernaldA (2008) Does input influence uptake? Links between maternal talk, processing speed and vocabulary size in Spanish-learning children. Developmental Science11(6): F31–F39.
18.
HuttenlocherJWaterfallHVasilyevaM, et al. (2010) Sources of variability in children’s language growth. Cognitive Psychology61(4): 343–365.
19.
HuttenlocherPR (2002) Neural Plasticity: The Effect of Environment on the Development of Cerebral Cortex. Cambridge, MA: Harvard University Press.
20.
JusticeLMJiangHBatesR, et al. (2020) Language disparities related to maternal education emerge by two years in a low-income sample. Maternal and Child Health Journal24: 1419–1427.
21.
JusticeLMJiangHPurtellKM, et al. (2019) Conditions of poverty, parent–child interactions, and toddlers’ early language skills in low-income families. Maternal and Child Health Journal23(7): 971–978.
22.
JusticeLMMcGintyASZuckerT, et al. (2013) Bi-directional dynamics underlie the complexity of talk in teacher–child play-based conversations in classrooms serving at-risk pupils. Early Childhood Research Quarterly28(3): 496–508.
23.
KooTKLiMY (2016) A guideline of selecting and reporting intraclass correlation coefficients for reliability research. Journal of Chiropractic Medicine15(2): 155–163.
24.
KuhlPK (2004) Early language acquisition: cracking the speech code. Nature Reviews Neuroscience5(11): 831–843.
25.
KuhlPKWilliamsKALacerdaF, et al. (1992) Linguistic experience alters phonetic perception in infants by 6 months of age. Science255(5044): 606–608.
26.
LandisJRKochGG (1977) The measurement of observer agreement for categorical data. Biometrics33(1): 159–174.
27.
LeechKARoweML (2021) An intervention to increase conversational turns between parents and young children. Journal of Child Language48: 399–412.
28.
LeeVEBurkamDT (2002) Inequality at the Starting Gate: Social Background Differences in Achievement as Children Begin School. Washington, DC: Economic Policy Institute.
29.
LiuH-MTsaoF-MKuhlPK (2009) Age-related changes in acoustic modifications of Mandarin maternal speech to preverbal infants and five-year-old children: A longitudinal study. Journal of Child Language36(4): 909–922.
30.
MillerJIglesiasA (2010). Systematic Analysis of Language Transcripts (SALT) Research Version. Madison, WI: SALT Software.
31.
NelsonKEWelshJATrupEMV, et al. (2011) Language delays of impoverished preschool children in relation to early academic and emotion recognition skills. First Language31(2): 164–194.
32.
NewmanRSRoweMLRatnerNB (2016) Input and uptake at 7 months predicts toddler vocabulary: The role of child-directed speech and infant processing skills in language development. Journal of Child Language43(5): 1158–1173.
33.
OsborneJW (ed.) (2008) Best Practices in Quantitative Methods. Los Angeles, CA: SAGE.
34.
OuelletteGP (2006) What’s meaning got to do with it: The role of vocabulary in word reading and reading comprehension. Journal of Education & Psychology98(3): 554–566.
35.
PanBARoweMLSingerJD, et al. (2005) Maternal correlates of growth in toddler vocabulary production in low-income families. Child Development76(4): 763–782.
36.
Ramírez-EsparzaNGarcía-SierraAKuhlPK (2017) The impact of early social interactions on later language development in Spanish-English bilingual infants. Child Development88(4): 1216–1234.
37.
RavivTKessenichMMorrisonFJ (2004) A mediational model of the association between socioeconomic status and three-year-old language abilities: The role of parenting factors. Early Childhood Research Quarterly19(4): 528–547.
38.
RomeoRRLeonardJARobinsonST, et al. (2018) Beyond the 30-million-word gap: Children’s conversational exposure is associated with language-related brain function. Psychological Science29(5): 700–710.
39.
RoweML (2008) Child-directed speech: Relation to socioeconomic status, knowledge of child development and child vocabulary skill. Journal of Child Language35(1): 185–205.
40.
RoweML (2012) A longitudinal investigation of the role of quantity and quality of child-directed speech in vocabulary development. Child Development83(5): 1762–1774.
41.
RoweML (2018) Understanding socioeconomic differences in parents’ speech to children. Child Development Perspectives12(2): 122–127.
42.
SarsourKSheridanMJutteD, et al. (2011) Family socioeconomic status and child executive functions: The roles of language, home environment, and single parenthood. Journal of the International Neuropsychological Society17(1): 120–132.
43.
ShneidmanLWoodwardAL (2016) Are child-directed interactions the cradle of social learning?Psychological Bulletin142(1): 1–17.
44.
ShneidmanLAArroyoMELevineSC, et al. (2013) What counts as effective input for word learning?Journal of Child Language40(3): 672–686.
45.
SperryDESperryLLMillerPJ (2019) Reexamining the verbal environments of children from different socioeconomic backgrounds. Child Development90(4): 1303–1318.
46.
SuskindDLeffelKRHernandezMW, et al. (2013) An exploratory study of “Quantitative Linguistic Feedback” effect of LENA feedback on adult language production. Communication Disorders Quarterly34(4): 199–209.
47.
SuskindDLLeffelKRGrafE, et al. (2016) A parent-directed language intervention for children of low socioeconomic status: A randomized controlled pilot study. Journal of Child Language43(2): 366–406.
48.
Tamis-LeMondaCSBornsteinMHBaumwellL (2001) Maternal responsiveness and children’s achievement of language milestones. Child Development72(3): 748–767.
49.
TompkinsVMeyerKJusticeLM (2021) Mothers’ sophisticated vocabulary input and children’s story comprehension. Early Education and Development32: 402–420.
50.
WeislederAFernaldA (2013) Talking to children matters: Early language experience strengthens processing and builds vocabulary. Psychological Science24(11): 2143–2152.
51.
WeizmanZOSnowCE (2001) Lexical output as related to children’s vocabulary acquisition: Effects of sophisticated exposure and support for meaning. Developmental Psychology37(2): 265–279.
52.
WilliamsBOnsmanABrownT (2010) Exploratory factor analysis: A five-step guide for novices. Australasian Journal of Paramedicine8(3): 1–13.
53.
YuanSFisherCSnedekerJ (2012) Counting the nouns: Simple structural cues to verb meaning. Child Development83(4): 1382–1399.
54.
YuCSmithLB (2012) Embodied attention and word learning by toddlers. Cognition125(2): 244–262.
55.
ZaucheLHThulTAMahoneyAED, et al. (2016) Influence of language nutrition on children’s language and cognitive development: An integrated review. Early Childhood Research Quarterly36: 318–333.
56.
ZimmermanFJGilkersonJRichardsJA, et al. (2009) Teaching by listening: The importance of adult-child conversations to language development. Pediatrics124: 342–349.
