Q:

How can I tell if my middle-schooler is being accepted socially by his peers? He spends a lot of time in solitary pursuits. -- Loner

A:

Simple observation should largely answer your question. Are friends calling him on the phone? Is he calling others on the phone? Is he asked on outings with other children? Does he interact with neighborhood children his age? Does he participate in sports formally or informally? Does he belong to scouts or any clubs? Does he ever do school projects or homework with others in his class? What does he say about having friends? What does his teacher say about his socialization at school?

Caution: Are excessive online activities limiting personal contact with his peers?