Some people think that only children lack social skills because they grow up without practice at getting on with their siblings. Researchers from Ohio State University have been looking into this theory in a study of 13,000 11-18 year-olds and have found that only children are just as popular as their peers. The researchers asked the children to name up to five boys and girls who they thought of as friends and the results were analyzed. There was no significant difference between only children and other children in terms of how often they were named as friends although socioeconomic status, parents' age and race and whether a child lived with both biological parents did affect how popular children were.
You can find out more about this study by clicking on the title of this post.