Research on the Communication Warning Behavior Subscale

An item pool for ASDAutism spectrum disorder (ASD) warning featuresFeatures was established based on ASD children’s behavioral patternsBehavioral patterns and sensory perceptionSensory perception states obtained through interviewsInterviews with their parents and referring to the Diagnostic and Statistical Manual of Mental Disorders: Fifth Edition (DSM-5) published by the American Psychiatric Association. Subsequently, a case–control studyCase-control study was conducted in the sampled region according to the scale construction process. Drawing on psychometric propertiesPsychometric properties of item discrimination, reliabilityReliability, and validityValidity, a subset of 33 items was selected for the Communication Warning BehaviorDevelopmental scalesubscalescommunication warning behavior Subscale, and then the scale’s validity was re-evaluated.