Although instructional technology has made large gains in the last 15 years in terms of the quantity and quality of computers available in schools, major questions remain about the effects of all this technology on student achievement. The author has conducted a series of studies to address these questions. By analyzing test score and…

This article reports on a study into the impact of students' use of the Internet and the computer at home on digital skills they need for school. The study was conducted in the lower grades of Dutch secondary education (students aged 13-15). More than 2500 students, distributed over 116 classes in 68 schools, participated in the study. Internet…