Based on the Findings of Recent Research, What Characterises the Children

Based on the findings of recent research, what characterises the children who gain the most from collaborative learning situations with their peers?

A) those who had previously worked on the task with parental assistance
B) those who were initially at the same level of competence as their learning partners, regardless of prior parental involvement
C) those who had previously worked on the task successfully on their own without parental assistance
D) those who were initially less competent than their learning partners, regardless of prior parental assistance