Answer to Question 1
Low-ability and low- to medium-ability students who were assigned to groups that included either medium- to high-ability or high-ability students outscored their peers who were assigned to homogeneous groups on a hands-on problem-solving test of electricity concepts and a paper-and-pencil test of the same concepts.
Answer to Question 2
The positive outcomes associated with cooperative learning are likely due to its motivational effect, the stimulation of cognitive development via peer interaction, and its facilitation of meaningful learning
The Greenhouse Effect
The overlapping relationship among research, evidence-based practice
Research Methods: Advantages and Limitations
Effect of an Increase in R&D in the Follower Country on the Steady State
First-Pass Effect
Problem