New research suggests that a quick questionnaire may be highly accurate at flagging children for autism. In 88 percent of cases, the so-called Psychological Development Questionnaire, or PDQ-1, correctly identified kids on the spectrum. The results held for children across all socioeconomic backgrounds, according to findings published recently in the Journal of Developmental and Behavioral Pediatrics. The two-minute screening tool asks parents whether their child points, gestures, responds to their name, relates to others and enjoys playing peek-a-boo, among other questions.