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The Differential Outcomes Effect: Teaching Verbal Operants. Michelle Olson, M.S, Mark Harvey, Ph.D, BCBA Ansley Hodges, M.S., BCBA, Eb Blakely, Ph.D, BCBA-D Florida Institute of Technology and QuestKids. Typical Procedure. Differential Outcomes Procedure.

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the differential outcomes effect teaching verbal operants

The Differential Outcomes Effect: Teaching Verbal Operants

Michelle Olson, M.S, Mark Harvey, Ph.D, BCBA

Ansley Hodges, M.S., BCBA, Eb Blakely, Ph.D, BCBA-D

Florida Institute of Technology and QuestKids

differential outcomes procedure
Differential Outcomes Procedure
  • Different reinforcers in a discrimination task, correlated with each kind of response

Differential Outcomes Effect

Increase rate of acquisition and/or maintain higher steady state performance

lab studies with nonhumans variety of discrimination paradigms
Lab Studies With Nonhumans:Variety of discrimination Paradigms

Two Choice Discrimination Experiments

two choice control procedure confound
Two-Choice Control Procedure:Confound????

1. Two reinforcers2. Correlated outcomes

Typical

DOE

Food

Food

Food

Water

slide10

Experiment 1: Extension to Verbal Operants

  • Two boys with autism – 8 and 5 years old
  • QuestKids Academy –
experiment 1 design
Experiment 1 Design
  • Alternating Treatments
  • Dependent Variable:
    • % correct of intraverbal responses
  • Independent Variable:
    • Correlated vs. Uncorrelated outcomes
intraverbal tasks
Intraverbal Tasks

Correlated Task

Uncorrelated Task

video
Video
  • Show video Clip
santi intraverbals
Santi: Intraverbals

Correlated Task

Uncorrelated Task

josh intraverbals
Josh: Intraverbals

Correlated Task

Uncorrelated Task

results experiment 1 josh
Results Experiment 1: Josh

Decreased # experimenters

experiment 2 extension to intraverbals and tacts
Experiment 2: Extension to Intraverbals and Tacts
  • Two different boys with autism both 8 years old
  • QuestKids Academy –
experiment 2
Experiment 2
  • Design:
    • Alternating Treatments
    • Multiple baseline across verbal operants
  • Dependent Variable:
    • % correct responses
    • Note: 100% and 97%, IOA respectively
  • Independent Variable:
    • Correlated vs. Uncorrelated outcomes
caliel tacts
Caliel: Tacts

Correlated Task

Uncorrelated Task

caliel intraverbals
Caliel: Intraverbals

Correlated Task

Uncorrelated Task

austin tacts
Austin: Tacts

Correlated Task

Uncorrelated Task

austin intraverbals
Austin: Intraverbals

Correlated Task

Uncorrelated Task

discussion of austin
Discussion of Austin

Why was uncorrelated more effective?

Correlated Task

discussion
Discussion
  • DOE procedure has promise in teaching verbal operants, especially intraverbals
  • Task difficulty critical element
  • Use when traditional procedures don’t work
discussion1
Discussion
  • Future Directions
    • Intraverbals replications
    • Recall / Comprehension (DTMS)
    • Different ages / abilities
slide32
End

For this PowerPoint and references

Website: www.fitaba.com

Email: eblakely@questinc.org

traditional discrimination training
Traditional Discrimination Training

Assay: Match-to-sample

Food

Food

Choice stimuli

Sample stimulus

doe procedure
DOE Procedure

Food

Drink

Sample stimulus

doe procedure1
DOE Procedure

Food

Drink

Sample stimulus

doe control procedures
DOE Control Procedures

Uncorrelated

Correlated

.5 Food/.5 Drink

.5 Food/.5 Drink

Food

Drink

Sample stimulus

Sample stimulus

doe procedure application
DOE Procedure: Application

Academic Tasks

Candy

Soda

A

B

SD: “Point to A”

SD: “Point to B”

doe procedure application1
DOE Procedure: Application

Recall Tasks

Candy

Soda

“Sandwich”

“My friend Will”

SD: “What did you just eat?”

SD: “Who did you just talk to?”

exercises
Exercises
  • The DOE is an effect in which different _________ are used for different ________ in a discrimination task.
  • What is the proper control procedure in a DOE study?
  • Pick a task that you are teaching, and design a DOE procedure for it.
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