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