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Icon Exchange : The Basics

Icon Exchange : The Basics. Phases 2-2F. Distance & Persistence. Everyone of us has seen the little kid in the grocery store tugging on their parent’s pant leg repeating, “I want candy! I want candy! I want candy!”

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Icon Exchange : The Basics

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  1. Icon Exchange:The Basics

  2. Phases 2-2F

  3. Distance & Persistence • Everyone of us has seen the little kid in the grocery store tugging on their parent’s pant leg repeating, “I want candy! I want candy! I want candy!” • We’ve also seen the tattletale at the park who’ll run across the entire playground just to tell mommy that brother climbed up the slide… • Call us crazy, but the ultimate goal of phases 2-2F is to turn quiet kids into a combinationof: • A) The relentlessly persistentcommunicator from the supermarket and • B) The communicator from the park who is willing to travel in order to talk

  4. Persistence • Persistence can be a necessary part of communication • Parents can’t devote their full attention to one child at all times • Example: Dinner burning on the stove, phone ringing, and two siblings running wildly around the kitchen. • Little Sammie, who has autism, holds up his ‘bathroom’ icon to his busy mother juggling the kids and dinner • Think Mommy’s gonna notice??? • Now if he is tugging at her pant leg & jabbing her with the icon, don’t you think she’s more apt to pay attention? • Persistence= getting someone’s attention

  5. Distance • What if Sammie is struck by the urge to pee and his parents are not around? • Like most children with autism, Sammie has to be taught to travel short distances in order to communicate • In addition to being persistent, phases 2-2F also aim to teach this skill

  6. Distance Training • Runners build stamina for marathons, we build stamina for communication! • Phases 2-2B gradually increase distance between child & tutor • Phases 2C-2E increase distance from child to communication book • Phase 2F increases distance from child to book to tutor Book Child Tutor

  7. Distance Training Cont. • Whenever possible, 2 tutors should be used for phases 2-2F • Students need to be able to discriminate “who’s got the goods” • If tutor 1 has the reinforcer, we want child to approach that tutor (not tutor 2 who does not have reinforcer)

  8. Even More Distance Training • What if my child approaches the “wrong” tutor!? (tutor withoutreinforcer) • DONOTGESTURALLY PROMPTchild • I.E.- Do NOT POINT to the “correct” tutor • PHYSICALLY GUIDEchild to “correct” tutor (tutor with reinforcer)

  9. Phases 3-3A:Discrimination • Goal of Phases 3-3A: • Child discriminates between icons of preferred & non-preferred items • Number of icons used depends on phase • The childs choosing of a non-preferred icon will result in a mildly aversive stimulus(non-preferred item) • If child chooses wrong (non-preferred) icon, use 4 step error correction • Make sureyou have a non-preferreditem before you start the trial • i.e. do an assessment for a preferred and a non preferred

  10. Non-Preferred Items • Assessing whether an item is non-preferred can be difficult • How to tell if item is non-preferred: • Child pushes item away or drops item • Child does not engage/play with item for at least 15 seconds • Child does not attend to item at all • Be sure you have child’s attention when you present item

  11. Neutral Item • If child uses item functionally, item is neutral • Example: Give child tissue & they wipe their nose • Tissue is neutral because child used it appropriately • Do NOT use a neutral item as a reinforcer!

  12. Phases 3B-3C:Discrimination • Goal of Phases 3B-3C: • For the child to discriminate between multiple preferred items • How do we do this? • CORRESPONDENCE CHECKS! • Example: Child gives tutor ‘cookie’ icon • We want to make sure that child actually wants a cookie so we hold out the cookie and another preferred item • This is the CORRESPONDENCE CHECK • Do NOT label item during correspondence check!!! • If child takes the cookie, they really wanted the cookie • If they take the other preferred item (instead of the cookie), then they aren’t discriminating between preferred icons • Use 4 step error correction

  13. 4 Step Error Correction • Phases 3-3C use 4 Step Error Correction • Used when child makes incorrect response • Used in place of the prompt hierarchy • 4 Step Error Correction consists of up to 3 complete cycles of: • Model • Practice • Distract • Repeat

  14. For phases 3-3C, if your child responds: CORRECTLY Lucky you, reinforce just as you normally would & move on to the next trial! OR INCORRECTLY First, POINT to the correct correct with a gestural prompt REMEMBER: This trial is the 1st of 10 INITIAL trials Your child’s response (correct/incorrect) in the initial trial determines whether you: Reinforce their behavior & move on to the next initial trial (correct response) or go through the 4 step error correction (incorrect response) 4 step error correction is NOT part of the initial trial If you have to use 4 step error correction, it means your child got the initial trial wrong STEP 1 MODEL

  15. STEP 2 PRACTICE • In step 1, you modeled the correct response for the child by pointing to the icon they ‘should’ have chosen. Now, allow the child an opportunity to PRACTICE giving you the correct icon • If the child performs the correct response during ‘practice’, proceed to step 3 of error correction • DO NOT PROVIDE CHILD WITH REINFORCER AT THIS TIME, EVEN THOUGH THEY RESPONDED CORRECTLY • They already got the trial wrong… this is just PRACTICE • If the child responds incorrectly during ‘practice’, go through prompt hierarchy • You already gesturally prompted the correct response during ‘model’ in step 1, so now use a partial physical prompt • DO NOT PROVIDE CHILD WITH REINFORCER AT THIS TIME, EVEN IF THEY RESPOND CORRECTLY • If the child still doesn’t respond correctly, full physically prompt the correct response

  16. STEP 3 DISTRACT • In steps 1 & 2, you modeled the correct response for your child & then allowed them an opportunity to practice the correct response • Now you need to briefly distract the child before moving on to step 4 • Flip over the communication book so it is face down, and do an ELO

  17. STEP 4 REPEAT • Step 4 provides student with an opportunity to respond independently (without prompts) & receive a reinforcer • If child responds correctly, give reinforcer! • If child responds incorrectly, go through 4 step error correction again • 4 step error correction cycle can be repeated up to a total of 3 times if necessary • If you complete 2 full cycles of the 4 step error correction and the child still has not responded correctly, remove the incorrect icon and do the 4 step once more so the child cannot respond incorrectly, and we do not punish their responding

  18. Step 4 Cont. • Note: If you do 3 consecutive initial trials & have to go through the maximum 3 full cycles of 4 step error correction each time, STOP THE PROCEDURE & GET IT CODED! • This means in 3 trials, you would’ve gone through a total of 9 cycles of 4 step error correction (3 full cycles for each of 3 initial trials)

  19. Taking data on the 4 Step Error Correction • Only take data on initial 10 trials of procedure • Should only be 10 “+/-” marks on data sheet at end of procedure • Do not take data on any part of 4 step error correction! • 4 step error correction is not part of INITIAL trial; it is a corrective procedure • If child responds incorrectly on initial trial, mark it as wrong • Begin 4 step error correction • Child may respond correctly sometime during 4 step error correction, but initial trial was still wrong (you’ve already taken data for this trial!) • DO NOT TAKE DATA ON ANY PART OF 4 STEP ERROR CORRECTION!

  20. 4 Step Error Correction in the Flesh 2 1 3 4

  21. Phases 4 – 4G

  22. Phases 4 – 4G • Goal of Phases 4-4G: • Child uses “sentence” to request items • Child will use “I want” icon & sentence strip for first time in phase 4 • We use backwards chaining to teach using a sentence • Tutor will ask child “What do you want?” and prompt child to put chosen icon on the sentence strip • Note: “I Want” icon is already on strip • Once the icon is on the strip prompt the child to hand over the whole sentence strip • Length of delay is phase specific for asking “what do you want”

  23. Phases 5 – 6A

  24. Phases 5-6A • DO NOT START PHASE 5 WITHOUT CARMEN’S APPROVAL! • Not all children proceed to these phases • These phases teach the child ‘tacting’ (labeling items) • All phases before taught ‘manding’ (requesting items) • Child will use “I see” icon instead of “I want” • Hold up non-preferred/neutral items for child to identify

  25. Phase 6 – 6A • This phase switches back and forth between asking “what do you see”, and “what do you want” • Start generalizing both around the classroom

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