While teachers can certainly make a difference in improving preschoolers' vocabulary and grammar skills, so too can their classmates, according to the results of a new study.

Laura Justice, a professor from Ohio State University's School of Teaching and Learning, as well as colleagues from Florida State University and the University of Virginia, recently conducted a study of 338 children who were enrolled in 49 preschools. After testing these students in the fall and spring, the researchers found that those with poor language skills were able to improve when placed among high-achievers.

Study findings revealed that when low-performers were placed alongside similar low-achieving students, they did not see any improvement over the course of the school year. However, when these youths were learning with pupils who were considered to be high-achievers, the researchers noticed a positive change in their language skills.

"We need to pay more attention to the composition of preschool classrooms," Justice said.

If children have recently switched to a new school, parents may want to have them take a kids IQ test to see if there has been a positive or negative change in their language skills.

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