The Effective Teaching Gap

September 23, 2022 • Troy Richardson

The Effective Teaching Gap

Reducing the student achievement gap between students from low-income and high-income families may be more difficult than redistributing effective teachers, according to a recent study.

Based on data collected from 26 public school districts over the course of five years, access to effective teachers is nearly equal between low- and high-income students, with the average teacher effectiveness being about 1 percent higher for high-income students.

Furthermore, estimates show that redistributing effective teachers to close this gap would only have a marginal effect on improving state testing scores for low-income students. For example, estimates show the student achievement gap between low-income and high-income eighth graders would only shrink .3 points in reading and 2.2 points in math.

More effective solutions to reduce the student achievement gap may include:

  • Expansion of tutoring
  • Implementing early-learning programs
  • Coaching teachers

For more information on the topic, check out Estimating the “Effective Teaching Gap” on the Education Next website.

Troy Richardson is an HR data analyst at TASB HR Services. Send Troy an email at

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Tagged: "Employee performance", HR, Recruiting, Retention