The relation between the power of a significance test in a block design with correlated measurements and the reliability of the measuring instrument is analyzed in terms of the components of variance entering the reliability coefficient and the noncentrality parameter. (Author/LMO)

A Monte Carlo Study was conducted to evaluate six models commonly used to evaluate change. The results revealed specific problems with each. Analysis of covariance and analysis of variance of residualized gain scores appeared to substantially and consistently overestimate the change effects. Multiple factor analysis of variance models utilizing…

In an effort to spend time resources more wisely, many schools have turned to block scheduling, in which classes are taught in longer periods. The school year is adjusted by dividing it into 30-; 45-; 60-; or 90-day periods. This paper presents findings of a study that investigated the effects of block scheduling on seventh-grade mathematics…

Describes a study conducted with kindergartners and second graders that examined developmental differences in children's production and recall of information presented via a computer presentation. Highlights include children's information processing skills; action and verbal labels; story versus list formats; and production and recall scores.…