OBF study materials
OBF study resources

OBF key terms

OBF · Get comfortable with the vocabulary.

Functional behavior assessment (FBA)

A systematic process of gathering information to identify the environmental events that reliably precede and follow a behavior, so that hypotheses about its purpose can be tested and used to design intervention.

Related: Function of behavior, ABC recording
Function of behavior

The reinforcing consequence a behavior produces for the learner, commonly grouped as attention, escape or avoidance, access to tangibles or activities, and automatic or sensory reinforcement.

Related: Functional behavior assessment (FBA), Reinforcement
ABC recording

A descriptive observation method that logs the antecedent, the behavior in observable terms, and the immediate consequence for each occurrence, producing patterns that suggest possible behavioral function.

Related: Functional behavior assessment (FBA), Antecedent intervention
Operational definition

A written statement describing a target behavior in observable, measurable, and replicable terms, including examples and non-examples, so that different observers can record it consistently.

Related: Interobserver agreement, Direct observation
Reinforcement

A consequence delivered contingent on a response that increases the future frequency of that response; it may be positive, adding a stimulus, or negative, removing or reducing a stimulus.

Related: Function of behavior, Extinction
Extinction

Discontinuing the reinforcement that previously maintained a behavior, which typically produces an initial increase in response rate, intensity, or variability known as an extinction burst.

Related: Reinforcement, Extinction burst
Extinction burst

A temporary escalation in the frequency, intensity, or variability of a response shortly after reinforcement is withdrawn, often followed by gradual decline if the procedure is applied consistently.

Related: Extinction, Fidelity of implementation
Antecedent intervention

A proactive strategy that alters conditions before a behavior occurs, such as changing task difficulty, offering choices, providing priming, or scheduling, to reduce the likelihood of challenging behavior.

Related: ABC recording, Discriminative stimulus
Discriminative stimulus

A stimulus that signals the availability of reinforcement for a particular response, thereby increasing the likelihood that the response occurs in its presence.

Related: Antecedent intervention, Reinforcement
Differential reinforcement

A procedure in which reinforcement is delivered for a specified alternative or incompatible response, or withheld for the target response, to shift the response repertoire without punishment.

Related: Reinforcement, Extinction
Positive behavior support

A values-based framework that combines behavioral science with person-centered planning, environmental redesign, skill teaching, and systems change to improve quality of life and reduce challenging behavior.

Related: Functional behavior assessment (FBA), Person-centered planning
Baseline data

Measurements of the target behavior collected before an intervention begins, used to describe current performance and to provide a comparison for evaluating change.

Related: Direct observation, Data-based decision making
Data-based decision making

The practice of reviewing graphed and summarized performance data at planned intervals to decide whether to continue, adjust, or discontinue an intervention.

Related: Baseline data, Fidelity of implementation
Direct observation

Recording behavior as it occurs in the natural setting using defined procedures such as event recording, interval recording, or duration recording, rather than relying on retrospective report.

Related: Operational definition, Interobserver agreement
Interobserver agreement

The degree to which two independent observers record the same behavior identically, calculated by comparing their records and used as an indicator of definition clarity and measurement trustworthiness.

Related: Operational definition, Direct observation
Fidelity of implementation

The extent to which an intervention is delivered as designed, including adherence to procedures, dosage, and quality of delivery, which is necessary before concluding that a plan failed.

Related: Data-based decision making, Extinction burst
Social validity

The judged acceptability and importance of intervention goals, procedures, and outcomes to the learner, family, and other stakeholders, often assessed through structured questionnaires or interviews.

Related: Person-centered planning, Informed consent
Task analysis

Breaking a complex skill into a sequenced set of smaller observable steps that can be taught, prompted, and measured individually.

Related: Prompting hierarchy, Chaining
Chaining

A teaching arrangement in which the steps of a task analysis are linked and taught in order, using forward, backward, or total-task presentation with prompting and reinforcement.

Related: Task analysis, Prompting hierarchy
Prompting hierarchy

A planned sequence of assistance levels, from least to most intrusive or most to least intrusive, used to help a learner perform a skill and then faded as independence improves.

Related: Task analysis, Chaining
Generalization

The occurrence of a learned skill across settings, people, materials, and time beyond the original teaching conditions, which usually requires deliberate planning and programming.

Related: Maintenance, Task analysis
Maintenance

The continued performance of a learned skill after formal teaching has ended, evaluated through follow-up probes conducted at intervals after instruction.

Related: Generalization, Baseline data
Person-centered planning

A facilitated planning process that centers the individual's preferences, goals, relationships, and community participation, producing an action plan built with the person and people who know them well.

Related: Positive behavior support, Social validity
Informed consent

Voluntary agreement to participate or to allow services, given after a clear explanation of purpose, procedures, risks, benefits, alternatives, and the right to withdraw at any time.

Related: Confidentiality, Assent
Assent

An individual's affirmative agreement to participate, sought in developmentally appropriate language when legal consent must come from a guardian or authorized representative.

Related: Informed consent, Self-determination
Confidentiality

The ethical and legal obligation to protect identifying information about clients, sharing it only with authorized persons or as required by law, and storing records securely.

Related: Informed consent, Mandated reporting
Mandated reporting

A legal duty, triggered by reasonable suspicion of abuse or neglect, to notify designated authorities within required timeframes, regardless of confidentiality concerns.

Related: Confidentiality, Scope of competence
Scope of competence

The boundaries of a practitioner's training, supervision, and experience, within which services may be delivered ethically, with referral or additional supervision required beyond those limits.

Related: Supervision, Mandated reporting
Dual relationship

A situation in which a practitioner holds a professional role plus another role with a client or family, such as friend, employer, or relative, creating risk of conflicting obligations and impaired judgment.

Related: Scope of competence, Informed consent
Supervision

Oversight of a trainee's or practitioner's work by a qualified supervisor who monitors case decisions, provides feedback, documents sessions, and retains responsibility for service quality.

Related: Scope of competence, Fidelity of implementation
Self-determination

The right and capacity of individuals to make choices about their own lives and supports, which practitioners promote by offering options, honoring preferences, and teaching decision-making skills.

Related: Assent, Person-centered planning
Active listening

A communication technique of attending fully, reflecting back content and feeling, and checking understanding, used to build trust and gather accurate information from clients and caregivers.

Related: Plain language, Collaboration
Plain language

Writing and speaking that uses short sentences, common words, and clear organization so that recipients can find, understand, and act on information the first time.

Related: Active listening, Cultural responsiveness
Cultural responsiveness

Adapting assessment, communication, and intervention to a person's language, values, family structure, and community context, while recognizing how one's own biases shape interpretation.

Related: Plain language, Person-centered planning
Collaboration

Working jointly with families, educators, and other providers toward shared goals through defined roles, regular communication, and coordinated decision making across settings.

Related: Active listening, Supervision
Behavior intervention plan

A written document summarizing target behaviors, hypothesized functions, prevention strategies, replacement skills to teach, response procedures, and progress-monitoring methods for an individual.

Related: Functional behavior assessment (FBA), Positive behavior support
Least restrictive environment

The legal and ethical principle that individuals should receive services in the most typical setting that meets their needs, with removal from general settings only when necessary and justified.

Related: Person-centered planning, Self-determination