This is an example of a complex sentence. A complex sentence is one that has an independent clause and a dependent one. An independent clause is one that is able to stand on its own. On the other hand, a dependent clause is one that does not express a complete idea. In this case, the sentence given contains both a dependent and an independent clause.
A measure of individual differences that identifies two sets of personality characteristics (other-oriented empathy, helpfulness) that are highly correlated with prosocial behavior.
