1Section A: Philosophical Underpinnings
23 Levels of Scientific Understanding
1st- Description 2- Prediction 3- Control DPC (Dana Priya Can)
3Description
The first level of scientific understanding which involves deriving quantifiable and classifiable facts (data) from systematically observed events.
4Prediction
When repeat observations show a consistent relationship between two events
5Control
The third and highest level of scientific understanding. Established through experimentation confirming that manipulating one event (the independent variable) results in a reliable change in another event (the dependent variable)
6Functional Relation
A verbal summary of results from experiment that describes the occurrence of the phenomena under study as a function of the operation of one or more controlled variables in the experiment in which a change in dependent variable can be produced by manipulating independent variable and that the change in the dependent variable was unlikely the confounding variables
7The Philosophical Assumptions Underlying the Science of Behavior Analysis
DEPPS (Don't eat pink pig slime) Determinism Empiricism Pragmatism Parsimony Selectionism
8Determinism
Events that occur in the universe do not happen "out of the blue." Instead
9Empiricism
Objective observation and measurement (5 senses) - Facts derived from experiments
10Parsimony
Must rule out the simple and logical explainations
11Pragmatism
A practical approach to problems in which truth is found in the process of verification
12Selectionism
All life forms naturally and continually evolve through their learning history and evolutionary development.
13Experimentation
Requires the manipulation of the independent variable to see the effects on the dependent variable in order to demonstrate a functional relation.
14Replication
repeating experiments
15Philosophical Doubt
Healthy skepticism -Question the truth
16Radical Behaviorism
A branch of behaviorism that includes private in addition to observable behavioral events
17Private Events
Events taking place inside the skin.
Thoughts & Feelings.
184 Branches of Behavior Analysis
BEAP- Believe Everyone Allows Pranks
Behaviorism.
Experimental Analysis of Behavior.
Applied Behavior Analysis (ABA)
Professional Practice Guided by the Science of Behavior Analysis
19Behaviorism
AKA Conceptual Analysis of Behavior
20Examines the philosophical
theoretical
21Experimental Analysis of Behavior (EAB)
Controlled Settings
Human and Non human subjects
Research based on basic process and principles and conducted mainly in labs.
22BACB®'s definition of Applied Behavior Analysis (ABA)
BA assess
23Behavior change tactics that increase behavior
teach
24Professional Practice Guided by the Science of Behavior Analysis
Many individuals in various fields. Not just BCBAs implementing ABA
257 Dimensions of ABA
BATCAGE
Behavioral
Applied
Technological
Conceptually Systematic
Analytical
Generality
Effective
26Behavioral
1. Target behavior
2. Behavior must be measurable
3. Whose behavior has changed
27Applied
The behavior targeted for change must be socially significant behavior that will improve the person's life and significant others
28Technological
Procedures are completely identified
29Conceptually Systematic
All procedures used should be tied to the basic principles of behavior analysis from which they were derived.
30Analytic
There is a functional relationship between the independent and dependent variable.
31Generality
behavior change that persists across time across other settings
32Effective
Improve behavior to make socially significant difference.
33Hypothetical Construct
a presumed but unobserved process or entity
AKA- Imaginary construct
34Explanatory Fiction
a fictitious variable that often is simply another name for the observed behavior that contributes nothing to an understanding of the variables responsible for developing or maintaining the behavior
35Circular Reasoning
Reasoning that ends and begins in the same place. No evidence is offered
Ex. Jimmy cried because he felt sad.
36Section B: Concepts and Principles
37Response
a reaction to a stimulus
Single instance of behavior
38Response Class
a group of responses with the same function
39Repertoire
All the behaviors that you can do and collection of skills that you learned
40Environment
elaborate always changing universe of events
Behavior cannot occur without an environment
41Stimulus
Physical events that effect the behavior of the individual
external or internal
42Stimulus Class
A group of antecedent stimuli that have a common effect on an operant class.
43Group members of a stimulus class tend to evoke or abate the same bx or response class
yet may vary across physical dimensions.
44Types of Stimulus Classes
FTF - For the Fun
45formal (physical features)
temporal (time)
46Formal Stimulus Class
physical features
47Temporal Stimulus Class
refers to time
48Functional Stimulus Class
the effect of the stimulus on a behavior
49Feature Stimulus Class
Stimuli share:
common topographies
relative relations
INFINITE number of stimuli
developed through stimulus generalization
50Arbitrary Stimulus Class
Stimuli that evoke the same response
LIMITED number of stimuli
Developed through stimulus equivalence.
51Respondent Behavior
Involuntary behavior (anxiety
Phylogenic- Gag Reflect
52Phylogeny
The natural evolution of a species which includes the inheritance of survival characteristics passed down from one generation to the next.
53Habituation
unconditioned stimulus is presented repeatedly over short time
54Ex. First firework startles you
but you get used to them as the show goes on.
55Respondent Conditioning
New stimuli can acquire the ability to elicit responses.
Occurs through pairing of two stimuli.
Stimulus - Stimulus Pairing (S - S)
56Unconditioned Stimulus (US)
An unconditioned stimulus is a stimulus that leads to an automatic response
57Neutral Stimulus (NS)
A neutral stimulus is a stimulus that at first elicits no response
58Conditioned Stimulus (CS)
a stimulus that elicits a response only after learning has taken place
59Unconditioned Response (UR)
in classical conditioning
60Conditioned Response (CR)
in classical conditioning
61Respondent Extinction
The repeated presentation of a conditioned stimulus in the absence of the unconditioned stimulus; the CS gradually loses its ability to elicit the conditioned response until the conditioned reflex no longer appears in the individual's repertoire.
62Operant Behavior
behavior determined and maintained by its history of consequences
Defined by function
Ontogeny
63Ontogeny
How the environment changes one individual over their lifetime.
64Operant Conditioning
a type of learning in which behavior is strengthened if followed by a reinforcer or diminished if followed by a punisher
AKA -ABC
653 Principles of Behavior
PER
punishment
extinction
reinforcement
66Reinforcement (SR)
consequence of a behavior that strengthens the probability of the behavior
67Positive Reinforcement (SR+)
Present a stimulus
685 Types of Positive Reinforcers
EATSS
Edible
Activity
Tangible
Social
Sensory
69Negative Reinforcement (SR-)
any stimulus or event the removal of which increases or maintains the rate of a response
70Escape
Behavior that terminates an aversive stimulus and is maintained by negative reinforcement
71Free-Operant Avoidance
A contingency in which responses at any time during an interval prior to the scheduled onset of an aversive stimulus delays the presentation of the aversive stimulus.
No SD
72Discriminated Avoidance
A contingency in which responding in the presence of a signal prevents the onset of a stimulus from which escape is a reinforcer.
SD present
73Formulas for Setting Initial Criterion for Reinforcement
744 Basic Schedules of Intermittent (INT) Reinforcement
Fixed Variable Interval or Ratio
75Fixed Ratio (FR)
a schedule of reinforcement requiring a fixed number of responses for reinforcement
76Variable Ratio (VR)
A schedule of reinforcement requiring a varying number of responses for reinforcement.
77Fixed Interval (FI)
reinforces a response only after a specified time has elapsed
78Variable Interval (VI)
reinforces a response at an average time
79Post Reinforcement Pause
a pause in responding that typically occurs after the delivery of the reinforcer on FR and FI schedules of reinforcement
80Thinning Intermittent Reinforcement
Gradually increasing the response ratio or the duration of the time interval
81Ratio Strain
A result of abrupt increases in ratio requirements when moving from denser to thinner reinforcement schedules.
82Common behavioral characteristics are avoidance
aggression
83Limited Hold
situation in which reinforcement is available only for a finite time following the lapse of an FI or VI interval--if the target response does not occur within the time limit
844 Variations of Basic Intermittent Schedules of Reinforcement
LPD2
Lag schedules of reinforcement
Progressive schedules of reinforcement
Delays to reinforcement schedule
Differential reinforcement of ratios of responding
85Lag Schedules of Reinforcement
SR delivered for a response that is different in topography
Do Something different
86Progressive Schedules of Reinforcement
systematically thins each successive reinforcement opportunity independent of the participant's behavior
How far will the reinforcement go?
87Delays to Reinforcement Schedule
Delayed SR is delivered to teach self-control
887 Compound Schedules of Reinforcement
CMCMTAC Cute Mothers Catapulted Many Toddlers Away Crying
Concurrent Schedules of Reinforcement
Multiple Schedules of Reinforcement
Chained Schedules of Reinforcement
Mixed Schedules of Reinforcement
Tandem Schedules of Reinforcement
Alternative Schedules of Reinforcement
Conjunctive Schedules of Reinforcement
89Concurrent Schedules of Reinforcement
Two or more reinforcement schedules that operate simultaneously and independently
90Multiple Schedules of Reinforcement
Presents two or more basic schedule of reinforcement in an alternating
91Chained Schedules of Reinforcement
has 2 or more basic schedule requirements that occur successively and in order
SD with each independent schedule with 1 or more behaviors
92Mixed Schedules of Reinforcement
2 or more basic schedules alternating or random
93identical to multiple schedules
except the mixed schedule has no SD correlated with the independent schedulesixed
94Tandem Schedules of Reinforcement
Has 2 or more basic schedule requirements that occur successively and does not have an SD correlated with each independent schedule with 1 or more behaviors
95Alternative Schedules of Reinforcement
96Conjunctive Schedules of Reinforcement
97Matching Law
Given two choices you will engage in behavior that has highest reinforcement
99Punishment
an event that decreases the behavior that it follows
100Positive Punishment
adding an undesirable stimulus to stop or decrease a behavior
101Negative Punishment
the removal of a stimulus to decrease the probability of a behavior's recurring
102Discriminative Effects of Punishment (SDp)
a behavior that occurs less often (or not at all) in certain conditions (S0 p)
103Automaticity of Reinforcement/Punishment
operant conditioning occurs automatically. Behavior is modified by consequences
104Automatic Reinforcement
(AKA self-stimming) The behavior itself is reinforcing and is not dependent on social interaction or receiving a tangible item.
105Automatic Punishment
punishment that occurs without the social mediation of others (others don't deliver the consequence at all)
106Positive Automatic Punishment: you buy a cashmere sweater
which turns out to be very itchy
107Socially Mediated Contingency
When another person controls your access to reinforcement/punishment
• Opposite of automatic reinforcement/punishment
108Unconditioned Reinforcer/ Reinforcement (UCR)
• A stimulus change that can increase the future frequency of behavior without prior pairing with any other form of reinforcement • No learning history required • UCRs are products of phylogeny (all members of a species generally share the same UCRs) • Requires a state of deprivation to be a reinforcer (Motivating Operation)
Example: Food and water: you are born wanting and needing these things when deprived
109Conditioned Reinforcer/ Reinforcement (CR)
When a previously neutral stimulus acquires the ability to function as a reinforcer through stimulus-stimulus pairing with 1 or more unconditioned or conditioned reinforcers
- Learning history required
110Generalized Conditioned Reinforcer (GCSR)
• A type of conditioned reinforcer that has been paired with many unconditioned and conditioned reinforcers
111Unconditioned Punisher/ Punishment (UCP)
No learning history required; products of phylogeny
112Example: Extremely hot temperature
extremely loud noise
113Conditioned Punisher/ Punishment (CP)
A previously neutral stimulus that now functions as a punisher because of prior pairing with 1 or more other punishers
• Learning history required; products of ontogeny
Example: When a neutral sound is paired with burning yourself on a hot stove.
114Generalized Conditioned Punisher (GCSP)
A type of conditioned punisher that' s been paired with many unconditioned and conditioned punishers (e.g. pain
115Extinction (EXT) (3 types)
PAN People act normal
P-Positive Reinforcement Extinction:
A-Automatic Reinforcement Extinction (AKA: Sensory Extinction)
N-Negative Reinforcement Extinction (AKA: Escape Extinction):
116Positive Reinforcement Extinction
o Function of behavior= attention
117o Function of behavior= tangible
so the form of EXT is no access to tangibles
118Automatic Reinforcement Extinction
Function of behavior= automatic reinforcement/sensory
119Negative Reinforcement Extinction
Function of behavior= escape so the form of EXT is no escape
120Stimulus Control
the ability of a stimulus to encourage some responses and discourage others
Acquired when a discriminated operant (learned behavior) occurs in the presence of the SD and doesn't occur in its absence or in the presence of other stimuli (Sdelta)
121Faulty Stimulus Control
an irrelevant stimulus controls the correct behavior (and the relevant stimulus does not)
122Factors Affecting Stimulus Control
Pre-Attending Skills: looking at your teacher and the materials
• 1st step to teach
2. Stimulus Salience: prominence of the stimulus in your setting to make things easier to learn
123Masking
Masking (AKA: Stimulus Blocking): though a stimulus has acquired stimulus control over a behavior
124Overshadowing
Overshadowing: the presence of 1 stimulus interferes with/overshadows the acquisition of stimulus control by another stimulus
125Discriminative Stimulus (SD)
A signal that tells you : reinforcement is available
126Stimulus Delta (SΔ)
A stimulus in the presence of which a given behavior has not produced reinforcement in the past
127Concept
Something that has a set of shared features
128Naturally Existing Contingency
any natural contingency of SR (or punishment) not created by the practitioner
129Contrived Contingency
contingency of SR or punishment created by the practitioners
130Stimulus Generalization
the tendency to respond to a stimulus that is only similar to the original conditioned stimulus with the conditioned response
131Stimulus Discrimination
a differentiation between two similar stimuli when only one of them is consistently associated with the unconditioned stimulus
132Response Generalization
The extent to which your client exhibits novel behaviors that are functionally equivalent to the trained target response
133Example: Jim's father taught him to fold socks by tying them in a knot
but over the years
134Motivating Operation (MO) (2 types)
1. Establishing Operation (EO)
2. Abolishing Operation (EO)
135Establishing Operation (EO)
A motivating operation that establishes (increases) the effectiveness
136Abolishing Operation (AO)
an environmental and/or biological event that (1) temporarily decreases the value of a specific reinforcer and (2) decreases the probability of behaviors yielding that reinforcer
137Value-Altering Effect
An alteration (increase or decrease) in the momentary effectiveness of a reinforcer or punisher
138Behavior-Altering Effect
An increase (evocative effect) or decrease (abative effect) in the current frequency of a behavior that has been reinforced by some stimulus
139Evocative Effect
An increase in the momentary frequency of behavior
140Abative Effect
A decrease in the current frequency of behavior that has been reinforced by the stimulus that is increased in reinforcing effectiveness by the same motivating operation
141Function-Altering Effects
refers to how the future behavior of a person changes because of the MO they are experiencing in the moment
142Unconditioned Motivating Operations (UMOs)
For all organisms
1. Food Deprivation
2. Sleep Deprivation
3. Oxygen Deprivation
4. Water Deprivation
5. Activity Deprivation
6. Sex Deprivation
7. Becoming too warm
8. Becoming too cold
9. Increase in pain
143Conditioned Motivating Operations (CMOs)
Value-altering motivating effects that are a function of a learning history
144Surrogate MO (CMO-S)
Alters value of consequences that are under the control of an MO with which it has been paired.
PAIRING PROCESS WITH ANOTHER MO
Tip: does the question describe a pairing process?
145Reflexive MO (CMO-R)
A condition or object that acquires its effectiveness as an MO by preceding a situation that either is worsening or is improving.
146Transitive MO (CMO-T)
Something is blocking access to an (un)conditioned reinforcer and problem-solving behaviors are needed
147Straw for a milk shake
spoon for soup
148Rule-Governed Behavior
behavior that has been generated through exposure to rules
149Contingency-Shaped Behavior
When a behavior is directly controlled by a contingency
150Example: Putting Neosporin on a painful cut
will immediately relieve the sting
151Verbal Behavior
behavior that is reinforced by others and includes vocal and non-vocal communication
152Speaker
o Emits the verbal behavior
o Gains access to SR
o Controls her environment though the behavior of the listener
o Plays an expansive role in VB
153Listener
o An audience for the speaker's behavior
o Reinforces the speaker's verbal behavior
o Responds to the speaker's verbal behavior in specific ways o Plays a small role in VB
154Point-to-Point Correspondence
When the beginning
155Formal Similarity
When the controlling stimulus (verbal sD) and the verbal response (e.g. echoic) have the same sense mode (both spoken
156Duplic
verbal behavior that shares formal similarity and point-to-point correspondence with its controlling stimulus. Think duplicate
157Codic
verbal behavior that shares no formal similarity with its controlling stimulus
158Skinner's 6 Elementary Verbal Operants
EMITTT
1.Mand
2. Tact
3. Echoic
4. Intraverbal
5. Textual
6. Transcription
159Echoic
Vocally imitatingepeating/echoing what you hear
160Mand
The speaker asks for (or states
161Extended Mands (2 types)
Magical Mand: mands in which the SR has never occurred in the past; wishing mands
Superstitious Mand: mands in which SR sometimes occurs incidentally or accidentally
162Intraverbal
An elementary verbal operant that is evoked by a verbal discriminative stimulus and that does not have point-to-point correspondence with that verbal stimulus.
163Tact
CONTACT with through any of his sense modes (i.e. see
164Tact Extensions (4 types)
SMMG- Studying Makes Me Grim
S-Solecistic Extension:
M-Metaphorical Extension:
M-Metonymical Extension
G-Generic Extension:
165Textual
Having to do with or based on a text.
166Transcription
The speaker converts spoken words (controlling stimulus/verbal S0 ) to written words
167Listener Discrimination
LISTENING to {and doing) whatever is asked
168Autoclitic
A secondary verbal operant in which some aspect of a speaker's own verbal behavior functions as an SD or an MO for additional speaker verbal behavior.
Hint: a secondary verbal operant with a secondary meaning about what the speaker is saying
169Autoclitic Mand
Autoclitic Mand= supplemental control by a (related) MO
170Example: Don't be offended
but I have to go
171Autoclitic Tact
informs listener of some nonverbal aspect of the primary verbal operant and is therefore controlled by nonverbal stimuli
172Derived Stimulus Relations
Responding indicating a relation (e.g.
173Relational Frame Theory (RFT)
A theory of derived stimulus relations proposing that stimulus relations are inherently verbal and that accumulated experience with relational exemplars creates generalized repertoires of relating.
174Frame
a stimulus relation between 2 or more stimuli that function within that class
175Symmetry Relation
if a baseball (A) is smaller than a basketball (B)
176Transitivity Relation
if a baseball (A) is smaller than a basketball (B) and a golf ball (C) is smaller than a baseball (A)
177Reflexivity
(AKA: Generalized Identity Matching): easy matching-to-sample • Reflexive stimulus control = when your client matches 2 identical stimuli
178Symmetry
the sample and comparison stimuli are reversed
179Transitivity
a derived stimulus relation that results from the training of 2 other stimulus-stimulus relations. If there is an A = B relation and a B = C relation
180Stimulus Equivalence-4 parts
ACRONYM: RSTS Reach Students This Spectacularly
Reflexivity
Symmetrical
Transitivity
Stimulus Equivalence
181Section C: Measurement
Data Display
182Characteristics and Basis of Good Operational Definitions
1. O-Objective: identify the observable parts of the behavior and environment
2.C-Clear: readable and unambiguous
3. C-Complete: identify the specific margins for the ONSET and OFFSET of the behavior
183Direct Measure of Behavior
Measuring the actual (focus of program) behavior as it is occurring
184• What is measured= what is happening
when it is happening
185Indirect Measure of Behavior
When behavior can't be or isn't measured as it is happening
• Behavior is measured in such a way that it produces a secondhand account of what
actually happened
186Product Measures
• Measuring behavior after it has occurred by looking at the changes the behavior
produced on the environment
• Refers to time of measurement (after) and the effect of the behavior
187Data
• The material with which you work to empirically guide you
Quantitative results of
190Rate
The# of occurrences in a given period of time
• Formula = count/time
191Celeration
Changes in rate over time
• Formula : count per unit of time/time or RATE/time
192Derivative Measures (2 types)
1. Percentage
2. Trials to criterion
193Percentage
• Considered an occurrence measurement
• Proportion or ratio formed by combining the same dimensional quantities (e .g. count
194divided by count
rate divided by rate
195Temporal Extent
refers to the fact that every instance of behavior occurs during some amount of time
196Duration
(n.) the length of time that something continues or lasts
197Temporal Locus
refers to the fact that every instance of behavior occurs at a certain point in time with respect to other events
198Latency
the elapsed time from the onset of a stimulus (e.g.
199Interresponse Time (IRT)
Amount of time that elapses between two consecutive instances of a response class
200Topography
Measurable and changeable dimension of behavior
• The physical form and shape of behavior
AKA: Form
201Magnitude
Greatness of size
202Trials-to-Criterion
Considered an occurrence measurement
• A measure of the# of response opportunities required to achieve a pre-specified level
of performance criteria
Example:# of opportunities to emit the behavior independently (%) or by blocks of a
certain# of trials required for the client to emit the correct response (count)
203Time Sampling Procedures
Direct methods for recording behavior during intervals or at specific moments in time
• Representations of behavior from the observation period
204Whole Interval Recording
involves checking off the interval if the behavior occurs throughout the WHOLE interval.
205Partial Interval Recording
a time sampling method in which the observer records whether the target behavior occurred at any time during the interval
206Momentary Time Sampling
a measurement method in which the presence or absence of behaviors are recorded at precisely specified time intervals
207Planned Activity Check
Variation of momentary time sampling for groups
Example: A teacher records data on the intervals of time his students are engaged in the
targeted activity by measuring their behavior at the end of each interval
208Validity
Hint: measuring the right thing
Validity is reliant on 3 fundamentals:
a. Measuring the relevant dimension of the behavior
b. Directly measuring socially significant target behavior
c. A guarantee that the data represent the behavior occurring in the conditions of
interest
209Accuracy
A description of how close a measurement is to the true value of the quantity measured.
210Reliability
• Dependability of measurement
• The degree to which repeating a measurement procedure produces the same result
211Measurement Artifacts
Data that do not provide a meaningful representation of the behavior
• Unwarranted and misleading picture of behavior because of how it was measured
212Interobserver Agreement (IOA)
The degree to which two or more independent observers report the same observed values after measuring the same events
213Total Count IOA
Divide smallest count amount by largest
214Mean Count-Per-Interval IOA
1. Divide the observation period into equal smaller intervals
2. Record the# of target behaviors within each interval
3. Add up the counts for all the behaviors and divide by total
# of intervals
215Exact Count-Per-Interval IOA
Identify the# of intervals with 100% IOA and divide by total # of intervals
216Trial-By-Trial IOA
Formula:
# of Trials of Agreement X 100%
_______________________
Total # of Trials
217Total Duration IOA
A relevant index of IOA for total duration measurement; computed by dividing the shorter of the two durations reported by the observers by the longer duration and multiplying by 100.
218Mean Duration-PerOccurrence IOA
1. Record the duration for each occurrence of the target
behavior
2. Add up all the durations for all the behaviors and divide by
total # of behaviors
219Interval-By-Interval IOA
Identify the# of intervals with 100% IOA (scored or unscored) and divide by total # of intervals
220Scored Interval IOA
1. Identify the# of intervals both observers scored an
occurrence (x)
2. Divide by total # of intervals in which 1 or both
observers recorded an occurrence (x)
221Unscored Interval IOA
1. Identify the# of intervals both observers scored
• Divide by total # of intervals in which 1 or both observers recorded a non-occurrence (o)
222Equal-Interval Graphs
-Graphs in which the distance between any 2 consecutive points on both the x-axis and y-axis are always the same
-All intervals are the same size
223Line Graph
Use for: communicating relevant quantitative relations over some dimension of time;
225X-Axis
Horizontal Axis (AKA: X-Axis; Abscissa): time passage and the presence
value of the IV
226Y-Axis
Vertical Axis (AKA: Y-Axis; Ordinate): the full range of values of the DV /the
quantifiable aspect of the target behavior
227Scale Break
used to indicate a break in time
228Condition Change Lines
the vertical lines drawn upward from the x-axis to show
points in time at which changes in the IV occurred
229Data Path
a. A quantity recorded during a specific observation period
b. The time/experimental conditions when that measure was conducted
230Bar Graph
Use for: group summative performance; separate data sets that aren't related
231Cumulative Record
• Skinner (of course) in EAB research; 1957
• Graph depicts rate of response
• Cumulative recorder= a device showing cumulative data
232Overall Response Rate
The average rate of response during a smaller period of time within a larger period for which an overall response rate has been given.
233Local Response Rate
an average rate of response during periods of time smaller
than that for which an overall response rate has been given
234• Calculation: same as above
but only using a small portion of the data on the graph
235Scatter Plot
• Illustrates the relative distribution of each measure in your client's data set
• Unconnected data points; different symbols representing specific times
236Standard Celeration Chart
Standardized way of charting and analyzing how frequency of behavior changes over
time
237• Standard celeration chart scales= go upwards in multiples/non-equally (e.g. 2
4
• To measure/increase the# of correct answers and decrease the# wrong within the
set time
2384 Fundamental Properties of Behavior Change
DLTV- Don't lower the volume
1. Data points
2. Level
3. Trend
4. Variability
239Data Points
• Identify and quantify the# of data points for each condition
• More data and more time = more confident measurement
• Amount depends on: new findings need more data; repeat measurements needs less
• Briefer is also acceptable for: dangerous behavior; subject can't perform behavior;
limited opportunity for behavior to happen
• High variability needs more data points to predict patterns; fewer needed with less
variability
240Level
• On a line graph
• A change in level is depicted when the data's average value changes
• Use for: examining how much has the behavior changed over time
241Mean Level Line
you draw a horizontal line through the data on the y-axis equaling the average/mean value of the data
242Median Level Line
use when the client's data has extreme outliers
243Trend
• Overall direction taken by the data path on a line graph
• Use for: assessing the direction of your client's data
244• Exclusive trend terms: direction (increasing
decreasing
steep)
• Trend line: a line you draw through your line graph to depict the overall direction of
the data
245Variability
• The degree to which data bounce around on a line graph
• Frequency and degree to which multiple measures of behavior yield different
outcomes
• Use for: determining how steady is your client's data
246Section D: Experimental Design
247Dependent Variable (DV)
(AKA: Target Behavior)
248• The target behavior of interest
being measured in an experiment
249Independent Variable (IV)
the variable that a researcher actively manipulates
250Internal Validity
The extent to which an experiment strongly shows that changes in behavior are a
direct result of the IV and not the result of some other uncontrollednknown
variables
2514 Confounding Threats to Internal Validity
MISS
252M -Measurement confounds: refers to the number and intricacy of the behaviors targeted
may occur due to observer drift
I -IV confounds: complicated & usually given in a treatment package
S -Subject confounds: maturation (changes in subject of study over time)
S -Setting confounds: studies in natural settings more likely to have confounding variables
253Measurement Confounds
Refers to the number & the intricacy of the bxs you are targeting.
May occur due to:
-Observer Drift
-Reactivity
-Observer Bias
254Observer Drift
when an observer unknowingly changes the way a measurement system is applied
To reduce: randomized data collection and scoring
255Observer Reactivity
refers to the changes to client behavior due to being observed. Also refers to observers being affected by their data collection being monitored
• To reduce: maintain baseline conditions long enough for reactivity effects to run their course; unobtrusive measurement
256Measurement Bias
your expectations that data will change in a particular direction
• To reduce: keep observers na'ive to expected outcomes of a study; use permanent product measures; consider probe data; double-blind control (subject and observer don't know treatment details)
257Independent Variable (IV) Confounds
IVs are complicated and given together usually in a treatment package
reduce: placebo control (in which your subject isn't aware if
the IV is present or not) or double-blind control procedures (in which the subject and observer don't know treatment details)
258Subject Confounds
Maturation:
• Practice:
• Adaptation:
• Warm-up Effects:
• To reduce subject confounds: repeated measurement will detect any subject
confounds
259Maturation
changes in your subject over the course of the study
260Practice Effects
(especially during baseline) responding improves from repeating the behavior; this is also a measurement confound
262Warm-Up Effects
(especially during baseline) responding is weaker at l51 due
to needing to get warmed up; this is also a measurement confound
263Setting Confounds
Studies in natural settings are more prone to confounding variables than in controlled laboratories
264Bootleg Reinforcement
may also occur in the natural environment: secretive SR
or access that isn't part of your IV
265Confounding Variables
• The terms
• Both refer to when unknown or unintended variables have uncontrolled influence on your study (you should try to control these)
266Extraneous Variables
any variables other than the independent variable that seem likely to influence the dependent variable in a specific study
267External Validity
extent to which we can generalize findings to real-world settings
268Intrasubject Direct Replication
Using the same subject in a direct replication
269Intersubject Direct Replication
Uses different but similar subjects to determine generality
270Systematic Replication
researcher intentionally changes 1 (or more) features of a
prior experiment (demonstrates reliability of original experiment AND confirms the external validity of the original experiment by showing the same impact in different
conditions)
271Treatment Package
(AKA: Behavioral Package): a behavior plan with many IVs at the same time. If a researcher is conducting a design that looks at the whole package
272Single-Subject Designs
Most experiments in ABA
273• Doesn't mean there is only one participant
but can be (typically 4-8)
• Each subject serves as his own control
• Each participant is graphed separately
275Steady State Responding
2774 Patterns of Baseline Data
280Affirmation of the Consequent
283Advantages of SingleSubject Experimental Designs
285Single-Subject Experimental Designs
286Multiple Baseline Design(s)
287Changing Criterion Design
289Multiple Treatment Design
290Multielement Design(s)
2913 Problems Avoided by Multielement Design
294Multiple Treatment Interference
295Nonparametric Analysis
300Multiplicative Effects