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Randomized comparison of two communication interventions for preschoolers with autism spectrum disorders . This randomized group experiment compared the efficacy of 2 communication interventions ( Responsive Education and Prelinguistic Milieu Teaching [ RPMT ] and the Picture Exchange Communication System [ PECS ] ) in 36 preschoolers with autism spectrum disorders . Each treatment was delivered 3 times per week , in 20-min sessions , for 6 months . The results revealed that the RPMT facilitated the frequency of generalized turn taking and generalized initiating joint attention more than did the PECS . The latter effect occurred only for children who began treatment with at least some initiating joint attention . In contrast , the PECS facilitated generalized requests more than the RPMT in children with very little initiating joint attention prior to treatment . These effect sizes were large .
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Intervention_Educational
2 communication interventions ( Responsive Education and Prelinguistic Milieu Teaching [ RPMT ] and the Picture Exchange Communication System [ PECS ]
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Intervention_Educational
RPMT
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Intervention_Pharmacological
PECS
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Outcome_Mental
frequency of generalized turn taking
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Outcome_Mental
generalized initiating joint attention
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Outcome_Mental
initiating joint attention
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Outcome_Mental
generalized requests
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Outcome_Mental
initiating joint attention
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Outcome_Other
effect sizes
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Outcome_Other
large
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Participant_Age
preschoolers
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Participant_Condition
autism spectrum disorders
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Participant_Sample-size
36
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Participant_Condition
autism spectrum disorders .