CampbellD. T.StanleyJ. C.Experimental and quasi-experimental designs for research. In GageN. L. (Ed.), Handbook of research on teaching. Chicago: Rand McNally, 1963. Pp. 171–246.
2.
HansonR.Consistency and stability of home-environmental measures related to IQ. Child Development, 1975, 46, 470–480.
3.
Home Information Scale. Durham, N.C.: Learning Institute of North Carolina, 1972.
4.
JonesP.Home environment and the development of verbal ability. Child Development, 1972, 43, 1081–1086.