Key ABA Terms, in Plain Language
Plain-language definitions of the clinical, billing, credentialing, and practice management terms ABA professionals use every day, in one reference.
Applied Behavior Analysis (ABA)
Applied Behavior Analysis (ABA) is a therapy grounded in the science of learning and behavior, most often used to support autistic people and individuals with developmental differences in building skills and independence.
Read more →ABA Billing
ABA billing is the process of submitting insurance claims for ABA services and managing the revenue cycle - from verifying eligibility through coding, submission, and payment.
Read more →ABA Data Collection
ABA data collection is the systematic recording of client behavior during therapy - trials, prompts, responses, and behavior events - used to measure progress and guide clinical decisions.
Read more →ABA Insurance Credentialing
ABA insurance credentialing is the process of getting a practice and its clinicians approved as in-network providers with insurance payers so that services can be billed and reimbursed.
Read more →ABA Practice Management Software
ABA practice management software is an all-in-one, HIPAA-compliant platform that brings the clinical and operational tools an ABA practice needs - scheduling, data collection, billing, and reporting - into one system.
Read more →ABC Data (Antecedent-Behavior-Consequence)
ABC data is a descriptive record of behavior in context - what happened immediately before it (antecedent), what the behavior looked like, and what followed it (consequence) - collected to build hypotheses about why the behavior occurs.
Read more →Assent
Assent is the learner's own affirmative willingness to participate in therapy - distinct from the consent a guardian signs - shown through whatever behavior the learner has available, and honored by pausing or changing what happens when it is withdrawn.
Read more →Authorization Units
Authorization units are the quantity of service a payer has approved for a client over a defined period, expressed in billing units per service type - the budget that scheduling and treatment delivery must live inside.
Read more →Baseline Data
Baseline data is the measurement of a behavior or skill taken before intervention begins - the starting point every later claim of progress is measured against.
Read more →Behavior Analyst Certification Board (BACB)
The Behavior Analyst Certification Board (BACB) is the nonprofit organization that certifies behavior analysts and behavior technicians, setting the coursework, fieldwork, examination, ethics, and supervision standards the profession practices under.
Read more →Behavior Intervention Plan (BIP)
A behavior intervention plan (BIP) is a written plan describing how a team will respond to a specific challenging behavior - what changes to prevent it, what skill is taught in its place, and how everyone should respond when it happens.
Read more →Behavior Reduction
Behavior reduction is the side of an ABA program that addresses behavior interfering with learning, safety, or participation - by changing what occasions and maintains it rather than by suppressing it.
Read more →Behavior Skills Training (BST)
Behavior skills training (BST) is a four-step teaching package - instruction, modeling, rehearsal, and feedback - that repeats until the learner performs the skill to a stated criterion, and it is the standard way ABA teaches a procedure to technicians, caregivers, and clients.
Read more →Billing Modifier
A modifier is a short code attached to a CPT code on a claim that qualifies the service without changing it - most often saying who delivered it, where, or under what arrangement - and payers differ on which ones they require.
Read more →Board Certified Assistant Behavior Analyst (BCaBA)
A Board Certified Assistant Behavior Analyst (BCaBA) is an undergraduate-level practitioner certified by the BACB to deliver and support ABA programming under the ongoing supervision of a behavior analyst.
Read more →Board Certified Behavior Analyst (BCBA)
A Board Certified Behavior Analyst (BCBA) is a graduate-level clinician certified by the Behavior Analyst Certification Board (BACB) to design and supervise ABA therapy programs.
Read more →Caregiver Training
Caregiver training is the service of teaching parents and other caregivers to run the strategies from their child's behavior plan - so that skills hold up in the hours and settings where clinicians aren't present.
Read more →Chaining
Chaining is a set of teaching procedures that link the individual steps of a multi-step routine - identified through a task analysis - into one fluent sequence, teaching one step at a time while the rest of the chain is prompted or completed for the learner.
Read more →Claim Denial
A claim denial occurs when an insurance payer refuses payment for a submitted claim - commonly because of a missing authorization, a coding error, an eligibility issue, or incomplete documentation.
Read more →Clearinghouse
A clearinghouse is the intermediary between providers and insurance payers: it validates claims, converts them to each payer's required electronic format, routes them, and returns status messages and remittances along the same pipe.
Read more →Coordination of Benefits (COB)
Coordination of benefits (COB) is the process payers use to establish which plan pays first when a client is covered by more than one, and what the remaining plans owe on the claim once the first has paid.
Read more →CPT Code
A CPT code is a standardized five-character code that names a specific clinical service on a claim, telling the payer exactly what was delivered and forming the basis of what it will pay for it.
Read more →Data Trend
A trend is the direction a series of data points is moving over time - up, down, or flat - and it is one of the three things a clinician reads off a graph, alongside the level of the data and how much they vary.
Read more →Differential Reinforcement
Differential reinforcement is the combination of reinforcing one class of behavior while withholding reinforcement for another, used to strengthen appropriate alternatives while a problem behavior is weakened.
Read more →Discrete Trial Training (DTT)
Discrete trial training (DTT) is a structured ABA teaching method that breaks a skill into small steps and teaches each one through short, repeated trials, each made up of an instruction, the learner's response, and a consequence.
Read more →Duration Recording
Duration recording is timing how long a behavior lasts - either the total time across a session or the length of each episode - used when a behavior's problem or progress lives in its length rather than its count.
Read more →Echoic
An echoic is the verbal operant of vocal imitation - repeating what was just heard, with the response matching the model sound for sound.
Read more →Electronic Health Record (EHR)
An electronic health record (EHR) is the digital record of a client's health information - demographics, diagnoses, assessments, treatment plans, session documentation, and authorizations - kept by a provider and governed by HIPAA.
Read more →Electronic Remittance Advice (ERA)
An electronic remittance advice (ERA) is the machine-readable file a payer returns to explain how it adjudicated a batch of claims - what it paid, what it adjusted, and the coded reason behind every dollar it withheld.
Read more →Electronic Visit Verification (EVV)
Electronic visit verification is the electronic capture of who delivered a service, to whom, what service, where, and when it began and ended - required by many Medicaid programs for services delivered in the home.
Read more →Explanation of Benefits (EOB)
An explanation of benefits is the payer's statement of how it adjudicated a claim - what was billed, what the contract allows, what the plan paid, what the patient owes, and the coded reasons behind each adjustment.
Read more →Extinction
Extinction is the procedure of no longer providing the reinforcement that has been maintaining a behavior, so the behavior gradually weakens because it stops working.
Read more →Frequency (Rate) Recording
Frequency recording is counting each occurrence of a behavior, usually reported as rate - the count divided by observation time - so sessions of different lengths can be compared fairly.
Read more →Functional Behavior Assessment (FBA)
A functional behavior assessment (FBA) is the process of identifying why a challenging behavior happens - what tends to trigger it and what it achieves for the person - so that an intervention can address the cause rather than the surface behavior.
Read more →Functional Communication Training (FCT)
Functional communication training (FCT) is a function-based intervention that teaches a learner a communication response producing the same outcome as a challenging behavior, so the need behind the behavior can be met a better way.
Read more →Functions of Behavior
The functions of behavior are the reasons a behavior keeps happening - the outcomes it reliably produces - conventionally grouped as attention, escape or avoidance, access to tangibles or activities, and automatic (sensory) reinforcement.
Read more →Generalization
Generalization is a skill holding up outside the conditions it was taught in - with different people, in different places, with different materials, and over time - which is the real goal of ABA teaching rather than performance in session.
Read more →In-Network Provider
An in-network provider is a healthcare professional or organization that has a contract with an insurance payer to provide covered services at negotiated reimbursement rates, which typically requires completing that payer's credentialing process.
Read more →Initial Assessment
An initial assessment is the first comprehensive evaluation completed by a BCBA to identify a client's strengths, skill deficits, challenging behaviors, and treatment needs, and its findings become the basis for the individualized ABA treatment plan.
Read more →Interobserver Agreement (IOA)
Interobserver agreement is the extent to which two people independently observing the same session record the same thing - the standard check that behavioral data reflects the behavior rather than the observer.
Read more →Interval Recording
Interval recording is a family of time-sampling methods that divide a session into short intervals and score each one for whether the behavior occurred, producing an estimate of behavior when counting every instance isn't feasible.
Read more →Intraverbal
An intraverbal is the verbal operant of responding to language with language - answering questions, completing phrases, and holding conversation, where the response does not echo the words that occasioned it.
Read more →Maintenance
Maintenance is the persistence of a learned skill after active teaching ends - the behavior continuing under the thinner, less structured reinforcement that everyday life actually provides.
Read more →Mand
A mand is the verbal operant of requesting - communication occasioned by wanting something and reinforced by getting it, whether the request is spoken, signed, exchanged as a picture, or produced on a device.
Read more →Mastery Criteria
Mastery criteria are the standards a learner has to meet before a goal counts as mastered - written into the goal in advance, so closing a target is a reading of the data rather than a judgment call.
Read more →Medical Necessity
Medical necessity is the payer standard that services must be clinically required to treat the member's condition - the bar an ABA practice's assessments, treatment plans, and progress documentation exist to clear.
Read more →Motivating Operation (MO)
A motivating operation is a condition that temporarily changes how valuable a consequence is and how likely the behaviors that produce it become - deprivation and satiation being the everyday examples.
Read more →National Provider Identifier (NPI)
A National Provider Identifier (NPI) is a unique 10-digit identification number assigned to healthcare providers by the Centers for Medicare & Medicaid Services (CMS), used on insurance claims, credentialing applications, and other healthcare transactions.
Read more →Natural Environment Teaching (NET)
Natural environment teaching (NET) is an ABA approach that teaches skills during everyday activities and play, using the learner's own interests and the naturally occurring consequences of the moment instead of a structured trial format.
Read more →Offline Data Collection
Offline data collection is recording ABA session data without an internet connection, with the information syncing automatically once connectivity is restored - particularly valuable for home- and community-based services.
Read more →Pairing
Pairing is the deliberate process of associating a therapist, setting, or materials with things the learner already enjoys, so that the person and place themselves become signals that good things happen here.
Read more →Payer
A payer is the organization responsible for reimbursing healthcare providers for covered services - in ABA, typically a private insurance company, a Medicaid managed care organization, or a government program such as Medicaid or TRICARE.
Read more →Phase Change Line
A phase change line is the vertical line drawn on a behavior graph where a condition changed - the marker separating baseline from intervention, or one procedure from the next, so the data on either side can be compared.
Read more →Picture Exchange Communication System (PECS)
The Picture Exchange Communication System (PECS) is a structured communication protocol in which a learner hands a picture to a communication partner to make a request, taught in defined phases that build from single exchanges toward sentences and commenting.
Read more →Place of Service (POS)
A place of service (POS) code is the entry on a claim stating where a service was delivered - a clinic, a home, a school, or a telehealth connection - and payers use it to decide both whether the service is covered and what it pays.
Read more →Preference Assessment
A preference assessment is a structured way of identifying which items and activities a learner is most likely to work for right now, producing a ranked short list of probable reinforcers rather than a guess.
Read more →Prior Authorization (PA)
A prior authorization (PA) is approval from an insurance company that allows ABA services to be provided for a specific number of hours or range of dates, and it has to stay current for those services to be covered.
Read more →Progress Report
A progress report is a clinical document summarizing a client's progress toward their treatment goals over a reporting period, and it is often what an insurance company requires before authorizing continued ABA services.
Read more →Prompt Fading
Prompt fading is the systematic removal of assistance across teaching trials so that a correct response comes under the control of the natural cue rather than the help provided by an instructor.
Read more →Prompt Hierarchy
A prompt hierarchy is an ordered set of levels of assistance - from full physical guidance through models and gestures down to independence - used consistently by a team so support can be faded as a learner acquires a skill.
Read more →Protected Health Information (PHI)
Protected health information is individually identifiable health information held or transmitted by a covered entity or its business associates - the data HIPAA's privacy and security rules exist to protect.
Read more →Reauthorization
Reauthorization is the process of asking a payer to approve a further period of ABA services before the current authorization expires, decided on clinical documentation showing what the client has achieved and why continued treatment is still necessary.
Read more →Registered Behavior Technician (RBT)
A Registered Behavior Technician (RBT) is a paraprofessional credentialed by the BACB who delivers ABA therapy directly to clients under the supervision of a BCBA.
Read more →Reinforcement
Reinforcement is anything that follows a behavior and makes that behavior more likely to happen again, and it is the core mechanism ABA uses to build new skills.
Read more →Rendering Provider
The rendering provider is the healthcare professional who actually delivers a service to a client, and on an insurance claim they may be a different party than the billing provider, depending on how the practice is structured.
Read more →Revenue Cycle Management (RCM)
Revenue cycle management (RCM) is the end-to-end process of getting paid for care delivered - verifying benefits, obtaining authorizations, capturing services, coding and submitting claims, posting payments, and working denials and balances.
Read more →Session Notes
Session notes are the clinical documentation completed after each ABA session, summarizing the interventions used, the learner's responses, progress toward goals, and any notable observations.
Read more →Shaping
Shaping is a teaching procedure that reinforces successive approximations of a target behavior, so a skill the learner cannot yet perform is built gradually from responses they already can.
Read more →Skill Acquisition
Skill acquisition is the side of an ABA program that teaches new repertoires - communication, social, play, academic, and daily-living skills - through structured teaching and reinforcement.
Read more →Stimulus Control
Stimulus control is the state in which a behavior occurs reliably in the presence of a particular cue and not otherwise, produced by a history of the behavior being reinforced in that cue's presence.
Read more →Supervision Notes
Supervision notes are records documenting the supervision a BCBA provides to an RBT, BCaBA, or trainee - typically the date of supervision, skills reviewed, feedback provided, and any action items.
Read more →Tact
A tact is the verbal operant of labeling - communication occasioned by seeing, hearing, or otherwise sensing something and maintained by social acknowledgment rather than by receiving the item itself.
Read more →Task Analysis
A task analysis is the breakdown of a multi-step skill, such as handwashing or getting dressed, into the individual steps that make it up, so each step can be taught, prompted, and measured on its own.
Read more →Timely Filing Limit
A timely filing limit is the payer's deadline for submitting a claim, measured from the date of service - claims arriving after it are denied regardless of their merit, and the denial is generally not billable to the client.
Read more →Token Economy
A token economy is a reinforcement system in which learners earn tokens - stars, points, chips - for target behaviors and exchange them later for chosen backup reinforcers.
Read more →Treatment Fidelity
Treatment fidelity - also called procedural fidelity or treatment integrity - is the degree to which a plan is delivered as it was written, and it determines whether the data collected during a program can be interpreted at all.
Read more →Treatment Goals
Treatment goals are the individual, measurable objectives an ABA program works toward - each with an operational definition, a baseline, and a stated criterion for what counts as mastery.
Read more →Treatment Phase
A treatment phase is a stretch of a program during which the conditions are deliberately held constant - baseline, an intervention, a faded prompt level, maintenance - so the data collected inside it describe one state of affairs.
Read more →Treatment Plan
A treatment plan is the clinical document that translates assessment results into the program itself: measurable goals with baselines and mastery criteria, the procedures to reach them, and the basis on which funders authorize care.
Read more →Trial-by-Trial Data
Trial-by-trial data is the record of what happened on each individual teaching opportunity - correct, incorrect, or prompted, and at which prompt level - rather than a single summary figure for the session.
Read more →Verbal Behavior
Verbal behavior is B. F. Skinner's functional account of language, which classifies communication not by the form of the words but by why they are said - the conditions that occasion them and the consequences that maintain them.
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