QABA QBA study materials
QABA QBA study resources

QABA QBA key terms

QABA QBA · Get comfortable with the vocabulary.

Operant conditioning

A learning process in which consequences that follow a behavior change how often that behavior occurs in the future. Reinforcement strengthens behavior, while punishment weakens it.

Related: Positive reinforcement, Punishment, Three-term contingency
Respondent conditioning

Learning in which a neutral stimulus repeatedly paired with a stimulus that already elicits a reflex comes to elicit a similar response on its own. Also called classical conditioning.

Related: Operant conditioning
Positive reinforcement

Adding a stimulus after a behavior that increases the future frequency of that behavior. The added event counts as a reinforcer only when behavior actually increases.

Related: Negative reinforcement, Punishment
Negative reinforcement

Removing or reducing a stimulus after a behavior that increases the future frequency of that behavior. Escape from or avoidance of an aversive event maintains the behavior.

Related: Positive reinforcement, Extinction
Punishment

A consequence delivered after a behavior that decreases the future frequency of that behavior. It may involve adding a stimulus or removing access to a preferred item or activity.

Related: Positive reinforcement, Extinction
Extinction

Discontinuing the reinforcement that previously maintained a behavior, which causes the behavior to decrease over time. The term refers to the procedure and the resulting decline.

Related: Extinction burst, Differential reinforcement
Extinction burst

A temporary increase in the rate, intensity, or variety of a behavior shortly after extinction begins. Bursts often include novel or aggressive responses and usually subside if extinction continues.

Related: Extinction
Three-term contingency

The basic unit of operant analysis: an antecedent stimulus, the behavior, and the consequence that follows. It describes how environmental events occasion and maintain behavior.

Related: Discriminative stimulus, Operant conditioning
Discriminative stimulus

An antecedent stimulus in the presence of which a particular response has been reinforced, making that response more likely in its presence than in its absence.

Related: Three-term contingency, Motivating operation
Motivating operation

An environmental event that changes the reinforcing or punishing value of a consequence and shifts the momentary likelihood of behaviors that produced that consequence. Deprivation, satiation, and instructions are examples.

Related: Discriminative stimulus, Negative reinforcement
Shaping

Reinforcing successive approximations of a target behavior while gradually raising the criterion until the final form occurs. It is used when the target skill is not yet in the learner's repertoire.

Related: Differential reinforcement, Task analysis
Differential reinforcement

Reinforcing one set of responses while withholding reinforcement for others, such as reinforcing a replacement behavior and not the problem behavior. Common variants include DRA, DRI, DRO, and DRL.

Related: Extinction, Replacement behavior
Generalization

The occurrence of a learned behavior under conditions different from those used in training, such as new settings, people, or instructions. It can be planned and programmed rather than assumed.

Related: Maintenance, Prompt
Maintenance

Continued performance of a learned behavior after teaching ends and reinforcement has been thinned or transferred to naturally occurring contingencies. It is measured over time after intervention stops.

Related: Generalization, Fading
Functional behavior assessment

A process for identifying environmental events that occasion and maintain problem behavior, using interviews, direct observation, and sometimes experimental analysis. Results guide the selection of intervention strategies.

Related: Functional analysis, ABC data, Behavior intervention plan
Functional analysis

An experimental procedure in which antecedents and consequences are systematically manipulated to identify the variables maintaining a behavior. It is the most rigorous form of functional behavior assessment.

Related: Functional behavior assessment, ABC data
ABC data

A direct observation record of what happened before a behavior (antecedent), the behavior itself, and what followed it (consequence). Patterns across many incidents suggest possible functions.

Related: Functional behavior assessment, Functional analysis
Operational definition

A precise, observable, and measurable description of a behavior that lets different observers agree on when it occurs and when it does not.

Related: Interobserver agreement, Baseline
Partial interval recording

Recording whether a behavior occurs at any point during a series of short intervals. It tends to overestimate behavior and suits behaviors that are hard to count.

Related: Momentary time sampling, Baseline
Momentary time sampling

Recording whether a behavior is occurring at the exact moment each interval ends. It estimates behavior and is practical when one observer monitors several learners at once.

Related: Partial interval recording, Baseline
Interobserver agreement

The degree to which two independent observers record the same behavior in the same way. It is calculated by comparing their records and supports the credibility of measurement.

Related: Operational definition, Baseline
Baseline

The condition in which behavior is measured before intervention begins, providing a comparison for judging treatment effects. Baseline data describe current performance and its variability.

Related: Operational definition, Data-based decision making
Behavior intervention plan

A written, individualized plan describing target behaviors, their functions, prevention strategies, replacement skills to teach, consequence procedures, and data collection for progress monitoring.

Related: Functional behavior assessment, Replacement behavior, Antecedent intervention
Antecedent intervention

Changing conditions before a behavior occurs to reduce the likelihood of problem behavior, such as adjusting schedules, offering choices, or priming. These strategies prevent rather than respond to behavior.

Related: Behavior intervention plan, Motivating operation
Replacement behavior

A socially acceptable behavior that produces the same outcome or function as the problem behavior, making it an efficient alternative to teach. It should be easier or more reliable than the problem behavior.

Related: Functional behavior assessment, Differential reinforcement
Prompt

A cue, model, gesture, or physical assistance delivered before or during a response to increase the chance of a correct response. Prompts are gradually withdrawn as independence develops.

Related: Fading, Shaping
Fading

Gradually removing prompts, reinforcement, or other supports as the learner becomes more independent, so gains maintain under natural conditions. It prevents abrupt loss of performance.

Related: Prompt, Maintenance, Generalization
Token economy

A system in which tokens are delivered for specified behaviors and later exchanged for backup reinforcers. Effectiveness depends on clear rules and a workable exchange rate.

Related: Positive reinforcement, Behavior intervention plan
Data-based decision making

Using graphed and summarized behavior data to decide whether to continue, modify, or discontinue an intervention. Decisions are made against predetermined criteria rather than impressions.

Related: Baseline, Treatment integrity
Social validity

The extent to which intervention goals, procedures, and outcomes are acceptable and meaningful to clients, caregivers, and other stakeholders. It addresses whether change matters in everyday life.

Related: Behavior intervention plan, Informed consent
Treatment integrity

The extent to which an intervention is implemented as written, including prescribed components, frequency, and duration. Low integrity can make an effective plan appear ineffective.

Related: Performance feedback, Behavior intervention plan
Behavioral skills training

A training package including instruction, modeling, rehearsal, and feedback until the trainee performs the target skill correctly. It is widely used to teach staff and caregivers.

Related: Performance feedback, Treatment integrity, Supervision
Performance feedback

Specific information given to a trainee about their performance, often paired with praise and suggestions for improvement. It works best when delivered soon after the observed behavior.

Related: Behavioral skills training, Supervision
Task analysis

Breaking a complex skill into smaller, teachable steps that can be taught in sequence and used to measure progress. It is the foundation for chaining procedures.

Related: Shaping, Behavioral skills training
Supervision

Ongoing oversight in which a more experienced professional monitors, supports, and evaluates a supervisee's work through case review, feedback, and documentation of competence.

Related: Performance feedback, Behavioral skills training, Scope of competence
Informed consent

Agreement to participate or to allow services after receiving understandable information about procedures, risks, benefits, alternatives, and the right to withdraw. Consent must be voluntary and documented.

Related: Confidentiality, Least restrictive alternative
Confidentiality

The ethical obligation to protect client information from unauthorized disclosure, sharing it only with people who need it for legitimate purposes or as required by law.

Related: Informed consent
Least restrictive alternative

Choosing the least intrusive intervention likely to be effective, preserving the client's rights and typical environment. More restrictive procedures require stronger justification and safeguards.

Related: Restrictive procedure, Informed consent
Restrictive procedure

An intervention that limits a person's freedom, movement, or access to preferred items, such as restraint, seclusion, or response cost. Such procedures require justification, consent, and monitoring.

Related: Least restrictive alternative, Informed consent
Scope of competence

The boundaries of a practitioner's education, training, and supervised experience. Professionals practice within these limits and seek consultation or refer when a case exceeds them.

Related: Supervision, Informed consent