Evidence from twin studies points to substantial environmental influences on intelligence, but the specifics of this influence are unclear. This study examined one developmental process that potentially causes intelligence differences: learning to read. In 1,890 twin pairs tested at 7, 9, 10, 12, and 16 years, a cross-lagged…

Discusses a developmental approach to children's library services in which the communication element is essential to successful programing and reader's advisory, both of which provide opportunities for using communication techniques that are meaningful in the pattern of a child's intellectual development. The stages of development are outlined.…

Two hundred Honolulu-area students from the fourth, fifth, eighth, and ninth grades participated in a study that examined the variables effects of five selected factors (developmental level, sex, reading ability, adult intervention, and variation in film content/form) on the ability of two age groups (nine and ten year old children and thirteen…