Large-scale Assessments in Education

An IERI – International Educational Research Institute Journal

Table 3 Estimates in alternative DiD models for the 10YTS

From: Is computer availability at home causally related to reading achievement in grade 4? A longitudinal difference in differences approach to IEA data from 1991 to 2006

Variables	C1				C2				C3				C1INT
Variables	b	se	t	p	b	se	t	p	b	se	t	p	b	se	t	p
ComputersC	−1.20	0.30	−4.04	0.000					−0.670	0.28	−2.39	0.017	−1.13	0.28	−4.08	0.000
BorrowC					0.70	0.08	8.86	0.00	0.480	0.14	3.55	0.000
Girl													0.19	0.02	12.04	0.000
Language at home													0.42	0.04	10.94	0.000
Books at home													0.16	0.02	10.30	0.000
ComputersC × girl													−0.01	0.05	−0.22	0.826
ComputersC × language													0.19	0.09	2.10	0.036
ComputersC × books													0.00	0.03	−0.06	0.952

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