ABA Fundamentals

A rapid method for evaluating the necessity for both a behavioral intervention and methylphenidate.

Kayser et al. (1997) · Journal of applied behavior analysis 1997
★ The Verdict

A short behavior plan drove problem behavior to near-zero in one young child with ADHD, making methylphenidate unnecessary.

✓ Read this if BCBAs asked to decide if a child with ADHD really needs medication.
✗ Skip if Clinicians only serving adults or clients without ADHD.

01Research in Context

01

What this study did

One six-year-old with ADHD kept getting out of his seat and yelling. Doctors wanted to know if he needed both behavior help and the drug methylphenidate. The team first watched him without any help. Then they added a quick behavior plan. They kept the drug in, took it away, then put it back. Each step lasted only a few days. They counted how often the boy left his seat or shouted.

The goal was to see if the drug added any benefit once good behavior support was in place.

02

What they found

The simple behavior plan cut problem behavior to almost zero. Adding the drug did not help more. Taking the drug away did not hurt. The boy stayed on-task with just the behavior plan. The team decided medication was not needed.

One child, one clear result: behavior alone was enough.

03

How this fits with other research

Johnson et al. (1994) looked at three kids with ADHD plus intellectual disability. They found a token board did little, but a focus-on-accuracy plan helped work quality. The 1997 study shows a different picture: with ADHD-only kids, an unnamed behavior plan wiped out disruption. The plans differ, so the results do not clash.

Allen et al. (2001) later tested a token system during kickball with older ADHD kids. Tokens alone beat the drug for two children. That finding extends the 1997 claim into recess and sport settings.

Kim (2025) ran a four-week digital game that handed out tokens inside the app. Kids’ attention rose and problem acts fell. This newer RCT gives stronger proof, updating the 1997 single-case story with tech and larger numbers.

Tarrant et al. (2018) pooled thirteen drug trials in youth with both ADHD and ID. Only about half responded to methylphenidate, and side effects were common. Their review warns that the pill is no sure thing, matching the 1997 choice to drop it.

04

Why it matters

You can test the need for medication in days, not months. Run a quick A-B-A-B plot with solid behavior tools first. If problem behavior tanks, you may spare the child unwanted side effects and spare parents the pharmacy bill. Share the graph with the pediatrician and team to make a data-based call.

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Pick one clear behavior tactic for the target problem, collect daily counts, and show the doctor a mini A-B-A-B graph before the next med check.

02At a glance

Intervention
other
Design
single case other
Sample size
1
Population
adhd
Finding
strongly positive
Magnitude
very large

03Original abstract

We examined the effects of a behavioral intervention and methylphenidate (MPH) on inappropriate behavior and sleep disturbance displayed by a 6‐year‐old boy who had been diagnosed with attention deficit hyperactivity disorder. Results showed that the behavioral intervention was effective in reducing inappropriate behaviors to near‐zero levels regardless of the presence or absence of MPH.

Journal of applied behavior analysis, 1997 · doi:10.1901/jaba.1997.30-177