Argumentative thinking requires not only the "skill" to apply argumentative strategies such as supporting theories with evidence but also the "will" to apply these strategies by considering argumentative thinking to be both reasonable and worthwhile. Focusing on direct instruction for the initial acquisition of both skill and…

A mixed-methods study grounded in Renzulli's Operation Houndstooth Intervention Theory examined the impact of different types of volunteer experiences on the six co-cognitive factors (Optimism, Courage, Romance With a Topic/Discipline, Sensitivity to Human Concerns, Physical/Mental Energy, and Vision/Sense of Destiny) associated with the…

Infants judged to be at risk for subnormal intellectual growth were randomly assigned to experimental and control groups which varied as to educational curriculum activities. Two types of evidence, group differences and parent-child IQ correlations, demonstrate the importance of early environments in intellectual development. (Author/RD)

This study was undertaken to ascertain the degree of stability of significant gains made in intellectual functioning by a group of children who attended Head Start programs and two groups of children who did not attend preschool programs. Data collected and analyzed at postkindergarten showed nonsignificant differences between performance levels…

The Yale Summer High School (YSHS) is an experimental program addressed to the development of high-potential, underachieving students from disadvantaged backgrounds. To evaluate the long-term effectiveness of the intervention, an experimental design including random selection of samples, two control groups (one matched for a test of…