Understanding the Impact of Leader in Me
Author: Leader in Me
December 20, 2023
Understanding the Impact of Leader in Me
In a recent meta-analysis of studies conducted independently on the impact of the Leader in Me schoolwide intervention, five main statistically significant findings resulted:
- Overall effect
- Improved educator views of school climate
- Increased student attendance
- Improved student behavior
- Increased student life skills
Interpreting the Findings
The findings were reported as Effect Sizes. It is important to note that these Effect Sizes are at the school-level, not at the student-level, since Leader in Me is a schoolwide intervention. Most educators are familiar with student-level effect sizes of academic interventions, as explained by John Hattie, but school-level effect sizes have a different scale and threshold of statistical significance.
Two common conversions are made to interpret school-level effect sizes:
| Improvement Index
What Works Clearinghouse uses the Improvement Index, which is a transformation of the effect size into percentile points. The Improvement Index shows the expected change in percentile rank. |
Leader in Me Percentile Point Increase:
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| Benchmark Ratings:
A widely-used benchmark for interpreting effect sizes from causal studies of school-level interventions is recommended by Dr. Kraft, a prominent researcher at Brown University. |
Leader in Me Benchmark Ratings:
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Villares, E., Miller. A. E., Chevalier, J. A. (2023). The Impact of Leader in Me on the School
Climate and Student Behaviors: A Meta-Analysis. International Journal of Education
Policy and Leadership, 19(2), 1-16. https://journals.sfu.ca/ijepl/index.php/ijepl/article/view/1339/351
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