Reinforcement Based Interventions

Reinforcement-Based Interventions

Reinforcement-Based Interventions

Paraprofessional Best Practice Library

Brief 05.05

Reinforcement-Based Interventions

DRO, DRA, DRI, NCR — what they are, when paras encounter them, how to implement with fidelity

For paraprofessionals implementing behavior plans with specific reinforcement schedules

Why this brief

If you work with a BCBA or in an ABA-influenced setting, you've probably seen acronyms like DRO, DRA, DRI, NCR in BIPs or in conversation. These are reinforcement-based behavior interventions — specific procedures for using reinforcement to reduce challenging behavior and build replacement behavior. They're well-researched and effective when implemented with fidelity. They're also commonly misimplemented, often because the para hasn't been trained on what specifically they're supposed to do.

This brief covers the practical version: what each major reinforcement-based intervention is, when each is used, what the para's role looks like, and how implementation goes wrong. Brief 04.05 (Reinforcement Basics) covers the underlying principles; 05.01 (Function-Based Thinking) covers the framework these procedures fit into; 05.03 (Reading and Running a BIP) covers BIP work broadly. This brief is specifically about the technical reinforcement procedures you may be asked to run.

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| The frameReinforcement-based interventions don't punish behavior — they reinforce alternative behavior so the problem behavior doesn't pay off. Done with fidelity, they reduce challenging behavior while building real skills. Done sloppily, they don't work and the team concludes the procedure was wrong when really the implementation was. |

Who this brief is for

Paras working under BIPs that include reinforcement-based interventions

Paras in self-contained, ABA-influenced, or DTT settings

Paras working with BCBAs

Supervising teachers and BCBAs designing and overseeing implementation

The four main reinforcement-based interventions

Most BIPs that use reinforcement-based interventions draw on one or more of these four:

| Acronym | Full name | Quick description |

| :-: | :-: | :-: |

| DRO | Differential Reinforcement of Other behavior | Reinforce the absence of the target behavior across a defined interval |

| DRA | Differential Reinforcement of Alternative behavior | Reinforce a specific alternative behavior that meets the same need |

| DRI | Differential Reinforcement of Incompatible behavior | Reinforce a behavior physically incompatible with the target |

| NCR | Non-Contingent Reinforcement | Provide reinforcement on a fixed schedule regardless of behavior |

Other procedures exist (DRL, ABC reinforcement schedules, behavior contracts, etc.) but these four cover most paraprofessional encounters with reinforcement-based interventions.

DRO — Differential Reinforcement of Other behavior

What it is

DRO is a procedure where you reinforce the student for not engaging in the target behavior across a defined time interval. The reinforcer is delivered if the behavior didn't occur during the interval; if the behavior did occur, the interval resets and reinforcement is withheld.

Example

Target: hitting peers

Interval: 5 minutes (initially)

Procedure: At end of every 5 minutes without hitting → reinforcer (token, sticker, brief praise)

If hitting occurs → interval resets; no reinforcer for that interval

Over time, interval increases (5 min → 10 min → 15 min → 30 min → 1 hr)

When DRO is used

Behavior the team wants to reduce in frequency

Behavior occurring at a manageable rate (not constantly, not extremely rare)

Other replacement behaviors aren't yet identified or aren't yet being taught

Function not fully understood or function-based intervention isn't working alone

Para's role

Track the interval — timer or clock

Note when target behavior occurs (resetting interval)

Deliver reinforcer at end of successful interval

Document data — number of intervals successful per day

Common errors

Forgetting to deliver reinforcer at the end of the interval

Not resetting after target behavior

Using too long an interval initially (most students need short intervals)

Inconsistent delivery

Not adjusting interval as student succeeds

Why it works

Strengthens any behavior other than the target — including behaviors the team wants

Doesn't require teaching a specific replacement

Limitations

Doesn't teach a specific replacement skill

Can be slow if intervals are short

Doesn't address function directly

DRA — Differential Reinforcement of Alternative behavior

What it is

DRA reinforces a specific alternative behavior that meets the same function as the target behavior. If the student wants attention and is screaming, DRA might reinforce the alternative behavior of asking for attention.

Example

Target: tantruming when asked to do work (function: escape)

Alternative: asking for a break

Procedure: When student asks for break → break given immediately

Tantrum: continued demand or planned ignoring (per BIP)

Why it's powerful

Teaches a specific functional replacement

Addresses function directly

Builds communication or coping skill

Often combined with FCT (Functional Communication Training; brief 05.06)

When DRA is used

Function is identified

Replacement skill is teachable

Student can or can be taught to perform the replacement

Most modern best-practice BIPs include DRA in some form

Para's role

Reinforce the alternative behavior immediately when student uses it

Don't reinforce the target behavior

Prompt the alternative if needed (early stages)

Track when student uses the alternative vs. target

Common errors

Reinforcing both — paying attention to target and giving the alternative reinforcer too

Not reinforcing the alternative immediately

Reinforcer for alternative isn't actually reinforcing

Not prompting the alternative when student is escalating

Inconsistent across staff

DRI — Differential Reinforcement of Incompatible behavior

What it is

DRI reinforces a behavior that's physically incompatible with the target — meaning the student literally can't do both at once.

Examples

Target: hitting peers

Incompatible: hands in lap, hands flat on desk, holding a fidget

Target: out of seat

Incompatible: bottom in chair, feet on floor

Target: mouthing non-food objects

Incompatible: chewing on a chewy tube, holding mouth tool

When DRI is used

There's a clear physically-incompatible behavior

The incompatible behavior is teachable and can be reinforced

Often combined with DRO or DRA

Para's role

Reinforce the incompatible behavior — "Nice keeping your hands in your lap; here's a token"

Don't reinforce the target

Prompt the incompatible behavior when needed

Differences from DRA

DRI specifies physical incompatibility — the student literally can't do both

DRA is broader — alternative may be conceptually different but not necessarily physically incompatible

DRI is sometimes a subset of DRA in practice

NCR — Non-Contingent Reinforcement

What it is

NCR provides reinforcement on a fixed time schedule, regardless of behavior. The student gets the reinforcer at predictable intervals whether they're engaging in target behavior or not.

Example

Target: attention-seeking calling out

Procedure: Para checks in with student every 5 minutes regardless of behavior

If student calls out before the check-in → planned ignoring or brief redirect

Student receives the attention they were calling out for, but on a schedule, not contingent on calling out

Why it works

Reduces motivation for target behavior — student gets what they want anyway

Doesn't punish — provides the reinforcer abundantly

Often gentle and effective for attention-maintained behavior

When NCR is used

Function is clear (especially attention or escape)

Reinforcer can be delivered on schedule

Student responds to predictable scheduling

Para's role

Maintain the schedule — timer, clock

Deliver the reinforcer at scheduled times

Don't accidentally reinforce target behavior in the meantime

Track adherence to schedule

Common errors

Letting attention-seeking behavior pull you off schedule

Forgetting to deliver

Schedule is too sparse — not enough reinforcement

Schedule is too dense — student doesn't internalize the structure

Inconsistent across staff

NCR for escape

Sometimes NCR provides scheduled breaks regardless of behavior

Reduces motivation for escape-maintained problem behavior

Student gets breaks predictably without needing to escalate

Combinations

Most real BIPs use combinations rather than single procedures.

Common combinations

| Combination | Why |

| :-: | :-: |

| DRA + planned ignoring | Reinforce the alternative; don't reinforce the target |

| DRO + token system | Reinforce non-occurrence with tokens; visible progress |

| DRA + NCR + DRO | Multiple reinforcement layers — alternative gets reinforced, schedule provides basal level, intervals reinforce non-occurrence |

| FCT + DRA | Teach communication; reinforce its use |

| DRI + DRO | Reinforce incompatible behavior; reinforce intervals without target |

Why combinations are common

Single procedures often aren't enough

Different mechanisms address different aspects

Robust against any one component breaking down

Para's role with combinations

Understand each component

Implement each with fidelity

Coordinate timing and delivery

Take data on each as designed

Implementation fidelity

Reinforcement-based interventions only work when implemented as designed. Fidelity matters more than for some other interventions because small changes can break the contingency.

What fidelity looks like

Procedure run as written in the BIP

Schedule maintained

Reinforcer delivered as specified

Target behavior responded to as specified

Data recorded accurately

Same across staff and settings

Common fidelity drift

Forgetting to deliver reinforcers

Reinforcing target behavior "just this once"

Schedule slipping

Reinforcer changing without team approval

Different staff doing it differently

Wrong response to target behavior

Calibration

Multiple paras running the same plan need calibration

Observe each other; discuss with BCBA

Take fidelity data periodically

Brief 06.03 (Prompt-Level Data) covers similar calibration

If you can't run it with fidelity

Bring concerns to the BCBA — too many demands? unclear procedure? equipment issues?

Don't drift silently — that produces failure with no diagnostic information

Sometimes the procedure needs revision; sometimes implementation needs support

Reinforcer selection

Brief 04.05 (Reinforcement Basics) covers preference assessment in depth. Specific to reinforcement-based interventions:

Effective reinforcers must be

Actually reinforcing for this student (assessed, not assumed)

Available consistently (not running out)

Deliverable in the time the procedure allows

Appropriate for the setting

Reinforcers can lose effectiveness

Satiation — same reinforcer over and over

Loss of magic — preference shifts

Better alternatives elsewhere — student's home environment provides what was reinforcing at school

Variety helps

Choice menu — student picks from options

Rotation — different reinforcers different days

Surprise items — variety maintains motivation

Match reinforcer to function

If escape-maintained, real escape (a break) is the natural reinforcer

If attention, real attention

Tangible reinforcers can substitute but the function-matched reinforcer is often most powerful

Update over time

Re-assess preferences periodically

Adjust as student matures

Bring concerns about specific reinforcers to BCBA

Data for reinforcement-based interventions

These procedures require data both to know they're working and to adjust. Brief 06.01 (Data Types Overview) and 06.03 (Prompt-Level Data) cover data systems.

Common data points

Frequency of target behavior over time

Frequency of alternative or incompatible behavior

Number of successful intervals (DRO)

Number of times alternative was used (DRA)

Number of NCR deliveries on schedule

Inter-observer agreement when multiple paras

Trends to watch

Target behavior decreasing — procedure working

Target behavior stable — procedure not working; needs revision

Target behavior increasing — significant problem; immediate review needed

Alternative behavior increasing — good

Alternative behavior not used — student doesn't have skill or alternative isn't reinforcing enough

Data informs adjustments

Lengthen DRO interval as student succeeds

Thin reinforcement schedule as alternative is mastered

Add new components if current isn't enough

Shift to different procedure if function is wrong

Bring data to team meetings

Trends over weeks, not just isolated days

Patterns by time of day, setting, or staff

Things that aren't on the data sheet but you've noticed

Brief 12.06 (Working with the BCBA)

Ethical considerations

Reinforcement-based interventions have specific ethical dimensions.

Coercion concerns

Withholding things students should have anyway can become coercive

Reinforcement should add to the student's life, not be used to coerce basic compliance

Brief 13.07 (Ethical Decision-Making Frameworks)

Dignity

Visible token systems can be stigmatizing if applied only to one student in a class

Discreet implementation matters

Age-appropriate forms — not toys for teenagers, etc.

Autonomy

Strict reinforcement schedules can feel like external control without student agency

Self-management procedures (student tracks own behavior, sets own goals) often more empowering

Older students often benefit from collaborative goal-setting

Disability rights perspectives

Some autistic adults critique heavy reinforcement-based approaches as compliance training

Listen to autistic and disability advocates

Function-based interventions that center communication and student agency align better with disability rights frameworks

Boundary issues

Reinforcement as bribery vs. reinforcement as support

Brief 04.05 covers this distinction

Honest motivation alongside reinforcement

Calibrating to age and student

Reinforcement-based interventions look different across ages.

Younger students

Tangible reinforcers more often appropriate

Token systems work well

Quick delivery — short cycles

Visible progress markers help

Middle school

Stickers may feel babyish

Privileges, choice, autonomy more reinforcing

Discreet implementation important

Group contingencies sometimes work

High school

Peer reinforcement dominant

Future-orientation matters ("this counts toward graduation")

Choice, control, identity

Tangible rewards often inappropriate; privileges and access work

Students with significant disabilities

May still benefit from tangible/primary reinforcement at older ages

Don't infantilize — age-appropriate presentation matters even when content is more elementary

Cultural considerations

Some cultures emphasize collective accomplishment

Some emphasize humility — effusive praise may be uncomfortable

Religious or family considerations may affect what's appropriate (food, holidays, etc.)

Brief 15.04 (Cultural Responsiveness), 15.06 (Religious Considerations)

Common challenges

Behavior continues at same rate

Possibilities: function wrong, reinforcer not effective, fidelity issues, contingency unclear to student

Bring data to BCBA

Don't conclude procedure doesn't work without diagnostic

Behavior gets worse before getting better (extinction burst)

Common when target behavior was previously being reinforced and now isn't

Persistence is required

Don't give in — that re-establishes the contingency

BCBA should have anticipated and planned for this

New problem behavior emerges

Sometimes blocking one behavior leads to another

Same function, different topography

Function-based intervention should anticipate

Reinforcer satiation

Brief 04.05 covers this

Variety, rotation, refresh menus

Inconsistency across staff

Brief 12.06 (BCBA) and 04.04 (Programming Sheets) cover fidelity

Calibration sessions help

Family involvement

Procedures work better when carried over to home

BCBA usually leads family training

Para's role: support carryover when family is willing

Plan revision

Brief 05.13 (When the Plan Isn't Working, planned)

Sometimes plans need substantial revision

Bring observations to the team

Integration across the school day

Reinforcement-based interventions don't only run during specific blocks. They're part of the rhythm of the day.

Across activities

Same procedure across academic, lunch, recess, transitions

Adapt as needed for setting (e.g., NCR check-ins look different at recess than in class)

Coordinate across staff in different settings

Across staff

Each para and teacher running it the same way

Brief incoming staff on procedures

Brief 16.04 (When the Para Is Out) and 16.11 (Substitute Teacher)

Transitions to other settings

Specials (PE, art, music)

Lunch and recess monitors

Bus drivers and aides

All may need awareness of the basic procedure

Generalization

Behavior change in one setting often doesn't transfer to others without explicit programming

Brief 04.08 (Generalization and Maintenance) covers this in detail

Fading reinforcement-based procedures

Procedures that work shouldn't run forever at full intensity. Fading matters.

Why fade

Sustainability — full procedures are demanding

Independence — student doesn't depend on heavy external structure

Generalization — behavior maintains in less-supported settings

Age-appropriate — older students don't need toddler-style structure

How fading works

Increase intervals (DRO) gradually

Thin reinforcement schedule (DRA, DRI) — reinforce intermittently

Reduce NCR frequency

Move from contrived to natural reinforcers

Brief 04.03 (Prompt Fading) covers fading principles broadly

When NOT to fade

Behavior hasn't stabilized

Student depending on the structure

Stress or transition periods

Bring fading decisions to the team

Sometimes fading fails

Behavior returns at higher rate

Step back to higher-intensity procedure briefly

Slower fade next time

Pitfalls

| Try this | Watch out for |

| :-: | :-: |

| Implement procedures with fidelity as written in the BIP | Drift from the procedure based on impressions or convenience |

| Identify and use truly reinforcing items for this student | Use generic reinforcers without preference assessment |

| Calibrate across staff for consistent implementation | Each staff member implement their own version |

| Take honest data on procedure outcomes | Massage data to make procedure look like it's working |

| Coordinate with BCBA on procedure design and adjustment | Modify procedure unilaterally when concerns arise |

| Address fidelity drift quickly | Let small drifts accumulate into procedure failure |

| Distinguish reinforcement from coercion | Withhold things students should have to force compliance |

| Calibrate procedures to age, culture, and individual student | Use the same template for every student regardless of fit |

| Recognize when procedures need fading vs. when they don't | Either run forever at full intensity or fade prematurely |

| Bring observations to team — when working, when not | Treat the BIP as static once written |

Scenarios

Scenario 1: A new BIP with DRA

Your student's BIP says: 'When student asks for break appropriately, immediately provide 2-minute break. Continue prompting work return after break.'

Implement exactly. When student asks (verbally, AAC, picture card — whatever the BIP specifies), immediately give the break. Don't make the student wait, prove they really need it, or finish current task first. The whole point of DRA is the alternative gets reinforced reliably. After 2 minutes, prompt return. If student doesn't ask but escalates instead, prompt the alternative ("You can ask for a break") rather than ignoring or just giving the break for the wrong behavior.

Scenario 2: DRO not working

Your student is on DRO with 5-minute intervals for hitting. Behavior hasn't decreased after a month.

Bring data to BCBA. Possibilities: (1) interval too long for current behavior rate, (2) reinforcer not actually reinforcing, (3) function is something other than what DRO addresses, (4) other staff aren't running it consistently. Don't conclude DRO doesn't work — diagnose. Brief 12.06 (Working with the BCBA).

Scenario 3: Forgetting NCR check-ins

Your student is on NCR (attention check-ins every 5 minutes). You've been so focused on his work that you've forgotten the schedule for the last 30 minutes.

Re-establish. Don't beat yourself up; do reset. Set a phone timer or visual timer to support. Notify the team if forgetting is a pattern — the schedule may need to be more sustainable, or you may need a different cue. Brief 06.01 (Data Types Overview) — track adherence.

Scenario 4: Reinforcer satiation

Your student loved the small toy reinforcers; now she ignores them.

Run a fresh preference assessment. Talk to family — has she been getting the same toys at home? Refresh the menu. Sometimes raise the response requirement (more tokens for the reward). Bring to the BCBA. Brief 04.05 (Reinforcement Basics).

Scenario 5: Inconsistency across staff

You run DRA for break-asking. Another para gives the break only after the student has "calmed down," not when she asks. Behavior is inconsistent.

Bring it to the BCBA and supervising teacher. Calibrate. The other para is essentially undermining DRA — if asking only sometimes works, the contingency is unreliable. Calibration session, fidelity data, written reminders. Brief 04.04 (Programming Sheets and Procedural Fidelity, planned) and 12.06.

Scenario 6: Concerns about coercion

The BIP says the student must earn 5 tokens before getting a bathroom break. You're uncomfortable with this.

This is a real concern. Bathroom access is generally not a privilege to be earned. Brief 13.07 (Ethical Decision-Making Frameworks) and 05.12 (Restraint and Seclusion) overlap. Bring it to the BCBA, supervising teacher, and case manager: "I want to flag a concern about the bathroom contingency." Document. If the team won't change it, consider escalating to admin. Brief 13.05 (When You See Something Wrong) covers escalation.

Closing thought

Reinforcement-based interventions are some of the most effective tools in the behavior support toolkit when implemented well. They're also some of the most often misimplemented — drift in fidelity, satiation of reinforcers, inconsistency across staff, ethical lines crossed. The skill is in knowing the procedure, running it as designed, taking honest data, calibrating across staff, and bringing concerns to the team rather than drifting silently.

As a para, you're typically the primary implementer. The BCBA designs the procedure; you make it real across the school day. Done well, you watch challenging behavior decrease and replacement behavior emerge over weeks and months. Done poorly, the procedure looks like it failed when really the implementation did. Take the work seriously; bring data; coordinate with the team.

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| Bottom lineImplement procedures with fidelity. DRO reinforces non-occurrence; DRA reinforces alternative; DRI reinforces incompatible; NCR provides scheduled reinforcement regardless of behavior. Most BIPs combine. Use truly reinforcing items. Calibrate across staff. Take honest data. Coordinate with BCBA. Distinguish reinforcement from coercion. Calibrate to age and individual. Fade thoughtfully when behavior stabilizes. |

Related briefs

04.03 Prompt Fading

04.05 Reinforcement Basics

04.07 Promoting Independence

05.01 Function-Based Thinking

05.02 Functional Behavior Assessment

05.03 Reading and Running a BIP

05.04 Antecedent Strategies

05.06 Functional Communication Training

05.13 When the Plan Isn't Working (planned)

06.01 Data Types Overview

06.03 Prompt-Level Data

12.06 Working with the BCBA

13.07 Ethical Decision-Making Frameworks

Resources: BACB Ethics Code; Cooper, Heron, Heward (Applied Behavior Analysis); BCBA in your district

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