Keith E Rice, Integrated SocioPsychology, day care, IQ, cognitive development, Lazar, Darlington, Zelazo, Kearsley, Baydar, Jerome Kagan, Caughey, childminders, Broberg, Buchanal, Lee, Operation Head Start, Ramey, Kagan, Clarke-Stewart, Zigler, Styfco, Cole, Ahnert, Irving Lazar, Richard Darlington, Edward Zigler, Sally Styfco, M Cole, Barthel, S R Cole, Richard Kearsley, Tizard, Philip Zelazo ,Leiselotte  Ahnert, Gunnar, Lamb, Megan Gunnar, Michael Lamb, Martina Barthel, longitudinal study, Barbara Tizard, Bengt-Erik Andersson, Baydar, Andersson, Brooks Gunn, Strabino,Nazli Baydar,DiPioetro,Jeanne Brooks-Gunn, Margaret Caughy, Janet DiPietro, Donna Strabino, Wessels, Anders Broberg, Lamb, Holger Wessels, Hwang, Michael Lamb, Carl-Philip Hwang, Ruhm, statistical significance, Ferguson, Gruber, Horwood, David Ferguson, John Horwood, Alison Clarke-Stewart, Fitzgerald, Christian Gruber, Linda May Fitzgerald, Margaret Buchanal, Marvin Lee, Ermisch, Craig Ramey, Christopher Ruhm, Francesconi, negative correlation, John Ermisch, Marco Francesconi, Campbell, Carolina Abecedarian Project, Miller-Johnson, Frances Campbell, Elizabeth Pungello, Shari Miller-Johnson, Scarr, Thompson, Pungello, Sandra Scarr, William Thompson