But the technique, in which the aide's hand is supposedly guided by the child to type what she wants to say, has been proved ineffective. It has been shown to rely on the aide's projections rather than to reflect the child's thoughts. Although some autistic children can learn to communicate genuinely via a keyboard with only initial guidance, facilitated communication, in which an aide always does the typing has repeatedly failed to demonstrate that the words are written or thought by the child. For example, when the facilitator is not allowed to hear the questions being asked of the child, the resulting answers are wrong or nonsensical.