The Autism Diagnostic Observation Schedule 2 toddler... · structured interactions, ... Module 1:...
Transcript of The Autism Diagnostic Observation Schedule 2 toddler... · structured interactions, ... Module 1:...
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Anewmoduleofastandardizeddiagnostic
measureforAutismspectrum disorders
intoddlers
TheAutismDiagnosticObservationSchedule–ToddlerModule
RominaMoavero
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About theADOS� The Autism Diagnostic Observation Schedule (ADOS) isa semi-structured assessment of communication, socialinteraction, and play (or imaginative use of materials)for individuals suspected of having autism spectrumdisorders.
� ADOS may be used with Autism Diagnostic Interview-RevisedScale (ADI-R) and has a higher predictive value (> 80%).
� Especially helpful for children who are less than 2 years oldor have intellectual disabilities
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About theADOS� The ADOS consists of standardized activities that allowthe examiner to observe the occurrence or non-occurrence of behaviors that have been identified asimportant to the diagnosis of ASD acrossdevelopmental levels and chronological ages.
Structured activities and materials, as well as lessstructured interactions, provide standardizedcontexts in which social, communicative andother behaviors relevant to autistic disorders areobserved.
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About theADOS-2� A revision of the ADOS, the ADOS-2 is an observationalassessment of Autism Spectrum Disorders (ASDs).
� Like its predecessor, the ADOS-2 is a semi-structured,standardized assessment of communication, socialinteraction, play, and restricted and repetitivebehaviours.
� It presents various activities that elicit behaviours directlyrelated to a diagnosis of ASD.
� By observing and coding these behaviours, you can obtaininformation that informs diagnosis, treatment planning,and educational placement.
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About theADOS-2� The ADOS-2 includes five modules, each requiring just 40 to60 minutes to administer.
� The examiner selects the module that is most appropriatefor a particular child or adult on the basis of his/herexpressive language level and chronological age.
ChoosingtheRightModule!
� FirstobtainaLanguageSample� Thesocialandlanguagedemandsplacedontheparticipant
haveaneffectontheextenttheparticipantwillshowimpairment
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ADOS-2Modules� ToddlerModule:Forchildrenbetween12and30monthsofagewhodonotconsistentlyusephrasespeech*
�Module1:Forchildren31monthsandolderwhodonotconsistentlyusephrasespeech
�Module2: Forchildrenofanyagewhousephrasespeechbutarenotverballyfluent**
�Module3:Forverballyfluentchildrenandyoungadolescents
�Module4: Forverballyfluentolderadolescentsandadults
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Defining language levelfor ADOS-2
� * Phrase speech: defined as non-echoed, three-wordutterances that sometimes involve a verb and that arespontaneous, meaningful word combinations.
� ** Verbal fluency: broadly defined as having theexpressive language of a typical four-year-old child:producing a range of sentence types and grammaticalforms, using language to provide information aboutevents out of the context of the ADOS, and producingsome logical connections within sentences (e.g., "but" or"though")
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ChoosingtheRightModule!Ifyouareindoubtastowhichmoduletochoose,itisbettertoerrinchoosingamodulethatrequiresfewerlanguageskillsthananindividualpossessesthantoriskconfoundinglanguagedifficultieswith
thesocialdemandsoftheinstrument.
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Focusof theADOS:what to observe?
� All modules provide social-communicative sequences thatcombine a series of unstructured and structuredsituations.
� Each situation provides a different combination ofstandard 'presses' for communication and socialinteraction.
'Presses'consistofplannedsocialoccasionsinwhichithasbeendeterminedin
advancethatabehaviorofaparticulartypeislikelytoappear
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� Each ADOS-2 module has its own Protocol Booklet, whichstructures the administration and guides you throughcoding and scoring.
� The order of tasks, pacing and materials can be varied,depending on the needs of the individual being assessed.
� As you administer activities, you observe the examineeand take notes. Within each module, the participant'sresponse to each activity is recorded.
� Immediately afterwards, you code the behavioursobserved.
� Then you use the Algorithm Form for scoring.
Standardised Administration
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� The activities serve to structure the interaction; they arenot ends in themselves.
� The object is not to test specific cognitive abilities orother skills in the activities, but to have tasks that aresufficiently intriguing that the child or adult beingassessed will want to participate.
Remember…
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Toddler Module
TheToddlerModuleoffersnewandmodifiedADOSactivitiesandscoresappropriatefor:
� Childrenbetween12and30monthsofage� Expressivelanguage:minimalspeech(rangingfromnospokenwordstosimpletwo-wordphrases),
� Nonverbalage:equivalentofatleast12months�Walking independently.
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Toddler Module
� The Toddler Module follows the same basic structure asthe Module 1.
� It should be conducted in a small child-friendly room,and a familiar caregiver should always be present.
� Less focus on the social initiations by the child andgreater focus on social responses:� Examiner structuring an interaction and waiting for aminimal change in the child’s behavior, such as a shift ingaze, facial expression or vocalization.
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ADMINISTRATION
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Toddler Module Activities
� 1 a. Free Play� 1b. Free Play -Ball� 2. Blocking Toy Play� 3. Response to Name� 4a. Bubble Play� 4b. Bubble Play-Teasing Toy Play� 5a. Anticipation of a Routine with
Objects� 5b. Anticipation of a Routine with
Objects- Unable Toy Play
� 6.AnticipationofaSocialRoutine
� 7.ResponsetoJointAttention
� 8.Responsive SocialSmile� 9a.Bathtime� 9b.Bathtime -- Ignore� 10.Functional &Symbolic
Imitation� 11.Snack
ElevenactivitiesareincludedintheToddlerModule,alongwith41overallcodes.
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Focusof child observation
Verbal andnonverbal
communication
Socialresponse
andiniteraction
Use of toys,sensory ormotor
behavior
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VERBAL/NONVERBALCOMMUNICATION1. Numbers and quality of gestures2. Frequency and aims of using pointing3. Frequency of spontaneous vocalizations direct to
others4. Facial expressions direct to others
Focusof child observation
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SOCIALRECIPROCALINTERACTION
1. Shared enjoynment in interaction2. Showing3. Integration of gaze and other behaviors during social
overtures4. Spontaneous beginning and response to joint
attention
Focusof child observation
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RESTRICTIVE/REPETITIVEBEHAVIORS
1. Unusual sensory interest in play material/person2. Atypical hand or finger movement/postures3. Unusual pattern of interest or repetitive use of any
object4. Intonation of verbalization or vocalization
Focusof child observation
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FreePlay- FreePlay-BallIspreferabletoadministerthissub-testsatthebeginningof
thesession,forcreatearelaxedsituationwithoutdemands,duringwhichthechildcansettleinandbecome
familiarwithyou
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FreePlayHOWTOADMINISTRATE
1. Tell the parent to give the baby a few minutes to explorethe environment alone
2. Allow the child to play alone for at least 3 minutes� If the child cries or does not watch the toys after 2 minuteseven with your help, you can encouraged the parents to sit onthe floor with the child and to interest him/her to the varioustoys
� If the child continues to be agitated, remove the material andreturn to this activity later
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FreePlayWHATTOFOCUS
1. Does the child spontaneously seek the involvement of theexaminer or the parents? if so, how it does it?
2. Does the child show joint attention to objects, seek help oraffection? if so, how it does it?
3. How does the baby communicate?5. Does the child expresses affection toward others? How
does he/she express? Does the child explore materials insymbolic or functional?
6. Does the child remain focused on a game or pass quicklyfrom one game to another?
7. the child does repetitive actions?
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Blocking Toy PlayHOWTOADMINISTRATE
1. Engage child in Shape Sorter Toy
2. Then, limit access to the toy for 5to 7 seconds
3. Once child complains, remove thehand for 10-15 seconds
REPEAT FOR TWO ATTEMPS
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Blocking Toy PlayWHATTOFOCUS
� How the child respond to the strange situation in which anadult intentionally prevents access to the toys for noreason?
� Is able to use eyes contact to understand the action of theexaminer?
� Is able to show his/her displeasure using vocalization?� Does the child manipulate the hand of the examiner as aform of communication?
� Does the child show a facial expression directed to anotheras a form of communication?
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Blocking Toy PlayWHATTOFOCUS
Markeachchild’sbehaviorobservedinresponseofbothattemps
Attemp1
Eyescontact toexamin.
Eyescontact toothers
Moveexaminator’shand
Vocalizationsof frustrations
Othervocalizations
Noresponse
Attemp2
Eyescontact toexamin
Eyescontact toothers
Moveexaminator’shand
Vocalizationsof frustrations
Othervocalizations
Noresponse
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Response to NameHOWTOADMINISTRATE
Assessthechild'sreactionwhenhe/shehascalledbynametogethisattention
� Administer the test when the child is engaged in ainteresting game… but …
� … Ensure that the child is not busy with a new game orwith particularly interesting toy
� Position yourself so that the child has to turn his headto see your face
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Response to NameHIERARCHYOFSTIMULI
1. Call the child up to 4 times� For each time, wait and see if the baby turns and looks you
straight in the face.� if the child does not turn around and not look you in the eyes
in any of the four attempts:2. Ask the parent to call the child by name.
� Parent can make a maximum of 2 attempts without usingphysical contact
� if the child turns around and not look parent in any of the twoattempts:
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Response to NameHIERARCHYOFSTIMULI
3. Ask the parent to try any sound or familiar phrase that canbe used to get the child's attention for a maximum of 2attempts .
� if the child turns around and not look parent in any of the twoattempts:
4. Ask the parent to use any strategy including physicalcontact to get the child's attention
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BubblePlayHOWTOADMINISTRATE
Assessthechild'sabilitiesinjointattentionandsocialrequest� Start activities when the child is distracted by anothergame
� Stand in front of the child with the bubble-shooting� Ask parents to not comment or talk when bubbles start tocome out
� Take out the bubbles but do not call back the attention onthem
� Then, if the child is not interested, create a funny routine tohelp the child to get involved in the activities
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BubblePlay
WHATTOFOCUS� Beginningofjointattention(specificitem)� Sharingtheenjoinmentininteractions�Modalityofrequestforbubbles� Typical/atypicalmotorbehaviorduringtheactivities
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BubblePlay-TeasingToyPlayq This activities has the same administration and focus of“Blocking toy play”
qMark each child’s behavior observed in response of bothattemp
Attemp1
Eyescontact toexamin.
Eyescontact toothers
Moveexaminator’shand
Vocalizationsof frustrations
Othervocalizations
Noresponse
Attemp2
Eyescontact toexamin
Eyescontact toothers
Moveexaminator’shand
Vocalizationsof frustrations
Othervocalizations
Noresponse
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AnticipationofaRoutinewithObjects
HOWTOADMINISTRATEAssessthechild'sabilitiesinjointattentionandsocialrequest
� Blow the balloon slowly and hold it in front of the child� Keep the balloon high above your head and engage thechild before starting the activity, using a phrase as “ready…go” or “one, two, three… go “
� Let the balloon to fly into the room�Wait that the child bring the balloon or indicate in someway that he desire that it is still inflated
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AnticipationofaRoutinewithObjects
HOWTOADMINISTRATE� If the child is not going to take the balloon or shows nointerest, collect the deflated balloon and repeat theprocedure slowly, pausing at each step to see what thechild will do.
Ifthechildrespondsinaclearlynegativeactivitywiththeballoon,youcanestablishroutineswithdifferentobjects
butyoumustkeepthesameprocedure.
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AnticipationofaRoutinewithObjects
WHATTOFOCUS� Beginningofjointattention� Sharingtheenjoinmentintheinteraction�Modalityofrequestforballoon� Typical/atypicalmotorbehaviorduringtheactivities
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AnticipationofaRoutinewithObjects- UnableToyPlay
� Hold the neck of the balloon for 5 seconds while blowingand shake the balloon and then say “It’s not working”
� Repeat one time� Blow back up and release
How does the child respond to the strange situation in whichthe examiner seems to be unable to complete the game ?
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AnticipationofaSocialRoutineHOWTOADMINISTRATESpecificorderofactivities
Becausethisbehavioracquiresabetterscoreifthechildsharesthefunduringaplayactivitywithoutbeingtouched,
itispreferabletostartwiththeplaythatnotinvolvephysicalcontact
1.Peekaboo 2.Tickling 3.Swinging
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ResponsetoJointAttentionEvaluatesthechild'sabilitytofollowthegaze,coordinated
withorientationoftheface,gesturesorvocalizationsusedtodirecthisattention
HOWTOADMINISTRATE
� Hide the animal or remote controlled car on a table or achair at the beginning of evaluation
� Administer the test when the child is engaged in ainteresting game
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ResponsetoJointAttentionHOWTOADMINISTRATE
� Call or touch the child, and if it’s possible, wait thathe/she look at you before starting with the stimuli
� You can try up to five times to catch child’s gaze, then,even if it’s not possible to obtain child’s attention, youcan start with hierarchy of stimuli
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ResponsetoJointAttentionHIERARCHYOFSTIMULI
1. Say “ Hey (child’s name), look” and moving your eyes in thedirection of the game, turning both the head.Not say the name of the game in no time
Ifthechildfollowsyourgaze,youcanactivatethegame,ifnot:
2. Repeat “ Hey (child’s name), look THAT ONE” , moving againyour eyes. Repeat another time.
YOUHAVEONLYTHREEVERBALATTEMPS
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ResponsetoJointAttentionHIERARCHYOFSTIMULI
3. Say “ Hey (child’s name), look” and point the toy.YouhaveTWOattemps withpointing
Ifthechildfollowsyourpointing,youcanactivatethegame,ifnot:
4. Use the remote control to turn on the game andobserve child’s behavior (communication, request,showing … )
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Responsive SocialSmile
Thisitemsevaluatesthechild'ssmileinresponsetoasocialoverturesofanadult
HOWTOADMINISTRATE� Administer the activity when the child does not alreadysmile
� Keep the child’s attention and try to encourage a smile withyour smile or funny facial expression/verbalization.You have TWO attemps, then …
� You can ask to the parent to make child smile without usephysical contact
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Bathtime
Evaluatesthechild'sabilitytotakepartinaplayofsocialroutine
HOWTOADMINISTRATE� Routine of taking a bath:
q Adjusting hot waterq Playing with toysq Washing the babyq Drying off the baby
� Checking for understanding the routine and how the childinteract or imite your actions
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Bathtime IgnoreEvaluatesthechild'sbehaviorwhenhe/sheisignoredby
examinerandparentHOWTOADMINISTRATE
� Instruct parent to not responde for 1 minute, unless thechild clearly engages him/her
� Act like taking note but keep view of child� Record the duration of Ignore activity in the protocol� Pay attention to:
vHow the child occupies himselfvHow the child respondes to withdrawalvIf and how the child initiates the interaction with you orhis parent
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Functional &Symbolic ImitationThisitemsevaluatesthechild’abilities toimitateactionwith
realobjectsorwithsymbolicsubstitute
IMITATIONTRIALS:3Phases:Eachphasehasthreechanceforobject
1. Phase 1: Real Object (frog, cup, airplane, flower):Demonstrate use of object ( e.g jump for frog) and ask childto do the same.If the child is able to imitate, you can move to a differentobject. If not, you can repeat the teaching trial
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Functional &Symbolic ImitationTEACHINGTRIAL:
Ø You can give only three demonstrations for teaching toimitate your action
Ø You can help physically the child only in ONE attempØ You can move on only if the child imitate your actionindependently
Your model Physical Independently
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Functional &Symbolic Imitation2. Phase 2: Real Object (frog, cup, airplane, flower) and
substitute object (planeholder):� Name the new object (e.g “This is a cup”)� Demonstrate use of the new object ( e.g fly for airplane)� Ask child to do the same with the real object.� Ask child to do the same action with the planeholder
If the child is able to imitate, you can move to the third phase.If not, you can return to the phase 2 with a new object.Ifthechildisnotabletoimitatewiththenewobject,
youmuststoptheadministration
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Functional &Symbolic Imitation3. Phase 3: Unseen Object (airplane, flower) and substitute
object (planeholder):� Take the planeholder and say the name the new unseen
object (e.g “This is a airplane”)� Demonstrate use of the new object ( e.g fly for airplane) but
only with the planeholder� Ask child to do the same action with the planeholder
If the child is not able to imitate action for the unseen object,you can return to the phase 2 with a new object.
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SnackThisactivitygivesthechildtheopportunitytomakea
requestforadailyactivityHOWTOADMINISTRATE
� Put two snacks on a plate and let him choose�Wait and see if the child ask more snacks spontaneously .� If not, raise food containers out of reach of the child andask “Do you want more?”
� Observe communicative behavior of the child and thenrepeat the procedure
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SCORINGANDDIAGNOSTICALGORITHM
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SCORING� The41overallcodesareorganizedonthebasisoffivemaingroups:1. LanguageandCommunication2. ReciprocalSocialInteraction3. Play/Imagination4. StereotypedBehaviors/RestrictedInterests5. Othersabnormalbehaviors
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SCORING
� Theexaminerobserveschild’behaviorandassignsspecificscoretopredeterminedobservationalcategories.
� Categorizedobservationsaresubsequentlycombinedtoproducequantitativescoresforanalysis.
� Eachitemisactuallyscored1or2dependinghowoftenanautistictraitisseenor0ifnotseen.
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SCORINGSummaryitemsversusitemswithspecificobservation
� Summary items: Some items require that the examinerconsider all the behaviors observed during ADOSadministration ( e. g: Pointing, Facial expression … ).� For these items, the examiner must be consider both typicaland atypical behaviors and make a balance between the mostbehaviors, not only among the best !!
� Specific observation: Other items require that theexaminer considers only the behaviors that occur during aspecific activity (e.g: Response to Joint Attention, Responseto Name … )
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Diagnostic Algorithm� A subset of items comprise the diagnostic algorithms ,following the format of the other modules.
� Algorithm items are structured according to thedomains used in the revised ADOS algorithms.
SOCIALAFFECT
RESTRICTEDAND
REPETITIVEBEHAVIORS
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Diagnostic Algorithm� The purpose of the ADOS algorithm is to provide aclassification for the child’s current ASD diagnostic status.
� Two different diagnostic algorithms are provided forchildren between 12-21 months and between 21-30months
� The Toddler Module includes only two classificationsintended for research use:
ASD NON-SPECTRUM
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Diagnostic Algorithm
� Toddler Module algorithms provide ‘ranges of concern’rather than cut-off scores.
� These ranges help the test user to form clinicalimpressions, but avoid formal classification – which maynot be appropriate at such a young age.
� The Toddler Module quantifies risk for ASD and signalsthe need for continued monitoring.