title: A tale of two methods: comparing regression and instrumental variables estimates of the effects of preschool child care type on the subsequent externalizing behavior of children in low-income families.
abstract: We apply instrumental variables (IV) techniques to a pooled data set of employment-focused experiments to examine the relation between type of preschool childcare and subsequent externalizing problem behavior for a large sample of low-income children. To assess the potential usefulness of this approach for addressing biases that can confound causal inferences in child care research, we compare instrumental variables results with those obtained using ordinary least squares (OLS) regression. We find that our OLS estimates concur with prior studies showing small positive associations between center-based care and later externalizing behavior. By contrast, our IV estimates indicate that preschool-aged children with center care experience are rated by mothers and teachers as having fewer externalizing problems on entering elementary school than their peers who were not in child care as preschoolers. Findings are discussed in relation to the literature on associations between different types of community-based child care and children's social behavior, particularly within low-income populations. Moreover, we use this study to highlight the relative strengths and weaknesses of each analytic method for addressing causal questions in developmental research.
authors.affiliation: Department of Human Development and Family Studies, University of North Carolina at Greensboro, P.O. Box 26170, Greensboro, NC 27402-6170, USA. dacrosby@uncg.edu
authors.forename: Danielle A
authors.initials: DA
authors.lastname: Crosby
authors.forename: Chantelle J
authors.initials: CJ
authors.lastname: Dowsett
authors.forename: Lisa A
authors.initials: LA
authors.lastname: Gennetian
authors.forename: Aletha C
authors.initials: AC
authors.lastname: Huston
mesh_terms: D000328:Adult; D002653:Child Behavior Disorders / Q000209:etiology* / Q000523:psychology*; D002654:Child Care; D002669:Child Welfare; D002675:Child, Preschool; D004651:Employment; D005178:Faculty; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D009034:Mother-Child Relations; D010290:Parents; D011203:Poverty; D011237:Predictive Value of Tests; D012044:Regression Analysis; D012680:Sensitivity and Specificity; D012931:Social Environment; D013223:Statistics as Topic
references.citation: Child Dev. 2007 Mar-Apr;78(2):681-701
references.pmid: 17381797
references.citation: Early Child Res Q. 2008 Jan 1;23(1):69-93
references.pmid: 19609366
references.citation: Future Child. 2005 Spring;15(1):169-96
references.pmid: 16130546
references.citation: J Child Psychol Psychiatry. 2001 Oct;42(7):845-59
references.pmid: 11693581
references.citation: Dev Psychol. 1998 Mar;34(2):276-87
references.pmid: 9541780
references.citation: Child Dev. 2003 Sep-Oct;74(5):1454-75
references.pmid: 14552408
references.citation: Child Dev. 2002 Nov-Dec;73(6):1861-79
references.pmid: 12487499
references.citation: Child Dev. 2003 Jul-Aug;74(4):1021-33
references.pmid: 12938696
references.citation: Dev Psychol. 2011 Sep;47(5):1263-79
references.pmid: 21688900
references.citation: Child Dev. 2001 Jan-Feb;72(1):299-317
references.pmid: 11280486
references.citation: Child Dev. 2004 Jan-Feb;75(1):47-65
references.pmid: 15015674
references.citation: Child Dev. 2004 Jan-Feb;75(1):296-312
references.pmid: 15015691
references.citation: Child Dev. 2003 Jul-Aug;74(4):1006-20
references.pmid: 12938695
references.citation: Child Dev. 2000 May-Jun;71(3):733-51
references.pmid: 10953940
references.citation: Dev Psychol. 2007 Jul;43(4):838-49
references.pmid: 17605518
references.citation: Dev Psychol. 2008 Mar;44(2):381-94
references.pmid: 18331130
references.citation: Future Child. 1995 Winter;5(3):51-75
references.pmid: 8835514
references.citation: Child Dev. 2004 May-Jun;75(3):639-50
references.pmid: 15144478
references.citation: Dev Psychol. 2005 Nov;41(6):872-84
references.pmid: 16351334
references.citation: Child Dev. 2001 Jul-Aug;72(4):1112-34
references.pmid: 11480937
references.citation: Child Dev. 2003 Jul-Aug;74(4):1050-2
references.pmid: 12938700
references.citation: Future Child. 2002 Winter-Spring;12(1):96-119
references.pmid: 11980041
references.citation: Demography. 2005 Feb;42(1):91-108
references.pmid: 15782897
references.citation: Dev Psychol. 2010 Jan;46(1):1-17
references.pmid: 20053002
references.citation: Monogr Soc Res Child Dev. 1981;46(1):1-82
references.pmid: 7242540