Richard Elardo, Robert Bradley, Bettye M. Caldwell, A Longitudinal Study of the Relation of Infants' Home Environments to Language Development at Age Three, Child Development, Vol. 48, No. 2 (Jun., 1977), pp. 595-603
No takes yet. Share an insight, caveat, or question.
Elardo et al. (1977) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: