In Charade, I discuss five principal effects of TBA that lead to this conclusion. (educationnext.org)
While the analysis by Waters, Marzano and McNulty produced interesting data, extrapolations from their estimates to principal effects on student learning in real - world conditions must be made with considerable caution. (wallacefoundation.org)
Griswold's principal effect went beyond contraceptives, undermining the long - standing principle of legitimate societal interest in regulating sexual behavior. (firstthings.com)