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Why Behavior Interventions Stall in Year Two

August 10, 2025 · Behavior Support
HW
Dr. Howard Wills
Principal Investigator, CW-FIT · 5 min read

Behavior interventions often begin with strong momentum. Schools dedicate time to professional development, staff feel energized, and early student progress is encouraging. By the second year, many teams notice a shift. While common, this pattern does not mean the intervention has failed.

When priorities begin to shift

One of the biggest reasons behavior initiatives stall is staff turnover and changing priorities. New teachers may not receive the same training as the original team, leading to inconsistent expectations. Schools also balance many initiatives at once, making it hard for behavior systems to stay central without intentional reinforcement from leadership.

Successful behavior systems are not sustained through enthusiasm alone. They rely on consistent reinforcement, coaching, and shared expectations over time.

Dr. Howard Wills, University of Kansas

The impact of data fatigue

Collecting behavioral data is valuable, but if educators do not see how it leads to decisions, the process feels disconnected from the classroom. Sustainable interventions prioritize smaller, actionable data points teachers can read and act on quickly.

68%
Staff report intervention drift by year two
42%
Educators report reduced implementation consistency
3 in 5
Schools prioritize ongoing coaching and support

Common questions

Why do interventions lose effectiveness over time?
They often lose effectiveness when schools reduce coaching, data reviews, or leadership reinforcement after the first year.
How can schools maintain staff consistency?+
What kind of behavior data is most useful?+

Sources

  1. Wills, H., et al. (2023). Sustaining class-wide behavior systems beyond year one. Juniper Gardens Children's Project, University of Kansas. View study →
  2. Schnitz, A., & May, K. (2024). Data fatigue and implementation drift in school teams. Journal of Positive Behavior Interventions.

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