Mands are a vital skill for the development of a child's communicative repertoire and are typically a major focus of early intensive behavior interventions (EIBI). Naturalistic teaching is more efficient than Discrete-Trial Training (DTT) for teaching mands (Jennet, Harris, & Delmolino, 2008); and therefore, the present study used crucial components from naturalistic teaching to teach mands in a discrete-trial format, using an echoic-to-mand procedure. This intervention increased the children's independent vocal requests. Initially, they learned to mand for items in sight and eventually for those out of sight. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]