An effective voir dire is one in which the judge and attorneys are able to solicit meaningful information from prospective jurors about their ability to serve fairly and impartially, and to do so in a reasonably efficient manner.
Building a Better Voir Dire (2008)
Managing Jury Selection Effectively (curriculum materials, NCSC 2007)
Examining Voir Dire in California (NCSC 2004)
Should Lawyers be Jurors? (1999)