Research Cluster

High-P Compliance and Guided Compliance

This cluster shows how to get kids with autism to follow hard instructions by first giving two or three easy, fun tasks they already like. It tells you to pile on praise or tiny treats right away and to skip most fights when they say no. If the easy-task trick still fails, you can add a favorite toy to the first prompt or give rewards on a timer. BCBAs like these steps because they make tough demands easier without tears or big meltdowns.

94articles
1961–2026year range
5key findings
Key Findings

What 94 articles tell us

  1. Presenting two or three easy, preferred tasks before a hard instruction significantly increases compliance and reduces problem behavior.
  2. Synchronous reinforcement—delivered at the exact moment of correct responding—outperforms accumulated reward schedules for on-task behavior.
  3. When true high-probability instructions are hard to find, medium-probability instructions can still boost cooperation for many children with autism.
  4. The HPIS is less reliable for increasing food acceptance, so always assess individually before applying it to feeding programs.
  5. Keeping reinforcer type consistent across high- and low-probability trials maximizes the effectiveness of the instructional sequence.
Free CEUs

Get 60+ CEUs Free in The ABA Clubhouse

Live CEU every Wednesday — ethics, supervision, and clinical topics. Always free.

Join Free →

Frequently Asked Questions

Common questions from BCBAs and RBTs

It is a technique where you give a child two or three easy instructions they already follow well, then immediately present the harder instruction you want them to complete. The easy wins build compliance momentum.

Research typically uses two to three easy requests. The key is that the child completes each one quickly—aim for tasks they do correctly at least 80 percent of the time.

Results are mixed. Some studies show no reliable increase in food acceptance with HPIS alone. Always run individual probes and consider adding differential reinforcement or stimulus fading alongside the sequence.

One study found that medium-probability instructions—tasks the child does correctly some but not most of the time—can still boost cooperation for many children with autism. Probe them and use your data to decide.

Once the child is completing the target instruction reliably across several sessions and settings, slowly reduce the number of easy tasks in the sequence. Move gradually and watch your compliance data for any drops.