Unit 9- 2 Flashcards
An experimental approach to assessment in which behavior is observed repeatedly underworld to find a test and control conditions, Which are characterized by the presence and absence of suspected maintaining variables.
Experimental manipulation
Functional analysis
Any formal method used to identify sources of reinforcement that maintain problem behaviors
Functional assessment
An experimental method that involves manipulating antecedents and consequences to determine their effect on behavior
Seeks to demonstrate a functional relationship between the problem behavior and environmental event
Functional analysis
When conducting a bit… You do not manipulate the environment in anyway. You simply observe events as they naturally occur
Descriptive assessment
Functional analysis is a type of
Functional assessment
Change in the independent variable produces orderly and predictable change in the dependent variable
IV-= environmental event
DV - behavior
Functional analysis is the process of identifying independent variables that are functionally related to behavior
Functional relation. And functional analysis are Term introduced by Skinner
Process of identifying independent variables that are functionally related to behavior. Can take many many forms
Functional analys I
Assumptions
Behavior problems are learned performance.
Adaptive and maladaptive behaviors are learned in the same manner
Purpose of a functional analysis
To identify the maintaining variable, source of reinforcement, for a behavior.
Remember: the function of the behavior is more important than the topography of the behavior
Can also tell us the conditions under which the behavior is unlikely to occur
Functional analysis of behavior disorders
The purpose of a functional analysis is to
Identify the maintaining variable for a behavior
Early functional analysis study: controlled by a single contingency, SR+
Self injury us behavior increased one followed by sympathetic statement
One child with SIB:
Noncontingent attention resulted in decreased in SIB
Contingent attention resulted in increase in SIB
Ignored resulted in illuminating SIB
Lovaas
Lovaas
Carr
Berkson
Early functional analysis studies; controlled by a single contingency,
Early functional analysis study controlled by a single contingency negative enforcement
Two conditions: demand versus no demand
No problem consequence for problem behavior
Results: SIB and aggression higher in the demand conditions
Social negative reinforcement?
Carr
Early functional analysis studies: controlled by a single contingency automatic reinforcement
Environment with activities versus environment with no activities
Sterotypy higher in impoverished environment Suggesting that stereo to pay was not maintained by Social reinforcement and thereby was likely maintained by automatically enforcement
Berkson has and Mason
Direct observation
Measurement of behavior under test controlled conditions
Basic features of functional analysis
Identification of functional relations through manipulation of suspected controlling variables
Example enforcement versus no reinforcement for target behavior
Condition A. Test- sneeze – bless you positive enforcement?
Condition B, control – sneeze – no response, extinction
Higher levels of behavior and Test condition as compared to control condition suggests We have the maintaining reinforcer
Measurement of behavior Under Test and control conditions
Positive reinforcement:
Social, (attention, access to materials/tangible)
Negative reinforcement:
Social, (escape from demands
Automatic, pain attenuation
Each of these was tested separately in the earlier single contingency studies
No one had yet put them all together in a single assessment
Learned functions of behavior
There are two essential features of functional analysis that were established in early studies. One is direct observation. What is the other
Measurement of behavior under test and control conditions
Indicated when:
Descriptive analysis does not provide sufficient information for formulating reasonable hypothesis
Although many believe a this should always be conducted
Intervention based on hypothesis generated from descriptive analysis are not producing the desired behavior change and no further adjustments are indicated by the data or other information
When there is a huge time and resource investment in training a large number of staff across a number of relevant environments to perform the requisite of the select a behavior change strategies.
Functional analysis methodology
Common forms:
Durand Carr functional analysis
Emphasis on the antecedent especially establishing operation during each condition: e.g. attention delivered at different rates during the test and control conditions ( FT- 30’s versus continuous attention
Iwata functional analysis
Emphasis on antecedents and consequences for the behavior during each condition
Functional analysis methodology
Created a general model for concurrently assessing the sensitivity of SIB to contingencies of
Social positive reinforcement
Social negative reinforcement
Automatic reinforcement
Each test condition contains in establishing operation, discriminative stimulus, and source of reinforcement
These things are absent in the control condition
Iwata et al
Purpose: to test a specific hypothesis about the controlling variables for problem behavior. Must include a control condition, which doesn’t have the antecedents and consequences related to hypothesis
The conditions are repeatedly administered in response rates are measured
Typically use a multi element design
Line graphs are used to detect differences between the test condition and the control condition
Controlling variables revealed when the rate of behavior in the test is consistently higher the control
Remember, standard functional analysis will have multiple test conditions to compare against the control condition only
Functional analysis methodology
Procedure
Dependent variables: SIB, define individually: partial interval recording
Protection from risk
Medical exam, exclusion of high-risk Criterion for risk of stabbers by a physician Session terminated if criterion met Post session exams by a nurse Weekly case review
Iwata procedures functional Analysis
Attention
Demand
Alone
Play
Sometimes tangibles
Functional analysis protocol/conditions
What is the relevant establishing operation in the demand condition
The presence of the demands
Functional assessment of behavior disorders
One behavior is maintained by different functions – the usual meaning
Behaviors that are typographically distinct may be maintained by the same function
Multiple control
Functional assessment interpretation: there is not clear separation between any condition and the control condition
Undifferentiated patterns of problem behavior during a functional analysis
Probable causes:
Difficulties in discrimination
Relevant variables not tested
Multiple control
Maybe more likely for a low rate behaviors
Simply do not occur during FA such that all conditions equals your rates
Undifferentiated Patterns
Each test individually compared to the control condition or to a uniquely arranged control
Multiple tasks can be elevated relative to the control
Multiple control?
One behavior maintained by different functions
Automatic reinforcement?
Highly preferred toys only available in control condition
These toys compete with behavior is maintained by automatic reinforcement
Attention, demand, lawn equals no toys equals high rate of behavior
Functional analysis interpretation
Implementing and evaluating treatments can help you figure out what do you have multiple control or automatically enforcement
Multiple control
Iwata conditions included attention, demand, alone and play but no tangibles
Should we include tangibles
Tangible conditions
Purpose: to determine if behavior was actually multiply controlled or represented iatrogenic effects
Subject: 26-year-old female with profound DD
Dependent variable: frequency of hand it to mouth contact
Shirley, Iwata
Procedure
Preference assessment
Functional analysis: attention, demand, alone, play, tangible
Changeable condition run with several different stimuli
Descriptive Assessment to identify what items delivered in home after problem behavior
Use the most commonly delivered item intangible condition
Shirley, procedures functional Analysis
Purpose: will A new response be acquired more readily and a tangible reinforcement relative to other conditions of functional analysis
Will problem behavior that does not have a social function emerge under a tangible condition?
Study 1: susceptibility to tangible reinforcement
Preference assessment
Functional analysis: target behavior: frequency of arbitrary response.
Conditions: alone attention tangible demand play
Study 2. False positive functional assessment outcomes. Functional assessment stereotopy Descriptive assessment of Comparison of tangible conditions Alone. Tangible PA. Stereotyp - HD Edible Tangible DA:Stereo – DA item
False positive FA outcomes
Rooker
Purpose: well I knew response be acquired more readily and a tangible reinforcement relative to other conditions of a functional analysis
Will probably behavior that does not have a social function emerge under a tangible condition
What is the main limitation of the Carr and iwata A B functional analysis
Did not manipulate the consequences so problem behavior is actually on Extinction
Name another experimental design other than the multi element, that can be used in a functional analysis
Pairwise
Multi element, reversal, pairwise
Functional assessment designs
Enhance motivation operations
Fixed sequence of conditions such that each condition establishes the establishing operation for the reinforcer tested in a subsequent condition
Eg alone equals attention
Program to pre-session deprivation
Alter response measurement
Evaluate and place consequences on only one Topography rather than multiple, at a time
Minimizes chances of undifferentiated results due to multiple control
Vary the control condition
Manner in which attention is delivered, FT 30 – S versus continuous
Types of leisure items available
Highly preferred toys during attention condition may compete with attention reinforcer
Alone as control for negative reinforcement because SD, I E, person with history of delivering the man’s, and establishing operation, instructions, and contingency are absent
Clarifying functional assessment outcomes
Typical experimental design: Multi element
Two additional experimental designs that could be used to enhance discrimination in functional analysis
Reversal pairwise
Rapidly alternate between conditions. Problem: possible lack of discrimination between conditions
Multi element design
Rapidly alternate between conditions. Possible lack of discrimination between conditions
Multi element
Fairly common
More efficient than reversal
One test condition alternated with control
May assist in discriminability of conditions
Pairwise functional Analysis to sign
Written for clinicians in practice
Why. Yes with functional assessment as a practitioner? Indirect assessment is unreliable. Only good when you care about clients verbal report as the behavior of interest
Descriptive assessment also not your friend.
Even bijou Said so
Can’t tell positive me force meant from negative reinforcement
Often. Points to attention
Iwata and Dozier
- Limited Assessment time: solution: brief functional assessment. Test a single function.
- Potentially dangerous behavior
Solution: precursor assessment and latency functional assessment - Limited control over the environment
Solution: trial based FA
Three potential constraints. Practitioner sometimes don’t think they can run functional assessments. These are the reasons they site.
Iwata n Dozier
To conduct a brief FA (BFA) Of aggression plus a contingency reversal, replacement R – DRA
Within 90 minute outpatient appointment
Subjects: first three referred for aggression
Dependent variables: aggression, I’ll probably behaviors, Mands (all 6 second partial interval)
Conditions:alone, attention, demand, tangible
Each condition typically only run for one session. Standard FHA involved at least three sessions per condition.
If time allows the condition with problem behavior is repeated
Contingency reversal: to identify potentially effective intervention
Condition with highest level of problem behavior in functional analysis
A equals reinforcement for PB; extinction for Mands
B equals reinforcement forMANDS, extinction for problem behavior
Concluded as BAB
Northrop brief FA
In summary, you can shorten the functional analysis for used in outpatient settings by conducting a BFA with only one session for condition
Contingency reversal: demonstrated that you could teach someone to ask for the reinforcer that maintains problem behavior and this would decrease problem behavior
Done with a 90 minute appointment
You can use functional analysis even if you are very limited with time
Northrop