1998c-175 acquisition americansignlanguage arabiclanguage assertiveness(psychology) assertivenessinchildren autisticchildren behaviormodification child childdevelopment childpsychology childrearing children childrenandadults childrenwithdisabilities childrenwithdisabilities_education cognitioninchildren communication comprehensioninchildren drawingabilityinchildren education education(elementary) egoisminchildren imitationinchildren infant infants interactionanalysisineducation interpersonalcommunication interpersonalcommunicationininfants interpersonalrelations interpersonalrelationsinchildren language languageacquisition languagearts languagearts(earlychildhood) learning listening nonverbalcommunicationinchildren nonverbalcommunicationininfants parentandchild parenting parentparticipation problemchildren socialinteractioninchildren socialperceptioninchildren socialskills studyandteaching(elementary)