Studies reporting predictions from assessments of infant recognition memory to later developmental performance and IQ are critiqued. Inelegancies in design, procedure, and analyses are noted. While this approach may have potential, its utility for practical or clinical purposes is still not demonstrated. (Author/RD)

Following a brief outline of vitamin therapy's effects on schizophrenia and learning disabilities, research is reviewed on vitamin therapy for children with Down's Syndrome, concluding with a discussion of critical responses to research endorsing vitamin therapy. It is concluded that vitamin therapy contributes nothing to the development of…

Current theories of intellectual development claim that such development proceeds through invariant sequences of increasingly more adequate cognitive structures. According to the two dominant theories on changes in intellectual functioning during adulthood, intellectual development is essentially accomplished by adolescence, although sharpening…

The recent phenomenon of the "returning adult" to colleges has raised concern regarding two implications: age decline in intellectual ability and loss due to lack of practice. Literature indicates slight impairment of the problem-solving function until the years of advanced age. The degree of impairment is related to factors of educational…