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Direct questions about the 2026 ISAT scale score to ISAT percentile rank conversion tables to
Ayaka Nukui (Director of Assessment and Accountability) at anukui@sde.idaho.gov
The last ISAT percentile rank conversion tables are for ISAT 2024 (Link Text)
Bert Stoneberg's "mini-minivita" - just a short list of experience and training. (Link Text)

Has Idaho's education progran served students across the ability levels? ISAT 2019-2025 percentiles, grades 3-8 (Link Text)
ISAT 2025 reading and math effect sizes, grades 3-8 (Link Text)
NAEP 2024 cross-state comparisons for reading and math, grades 4 and 8 (maps) (Link Text)
Cross-state comparisons of state per-pupil expenditures, FY2023 (Link Text)

Stoneberg, B.D. (2015). Real cost-benefit analysis is needed in American public education (Open)
Stoneberg, B.D. (2015). The relationship between the rigor of a state's proficiency standard and student achievement in the state (Open)
Stoneberg, B.D. (2007). Using NAEP to confirm state test results in the No Child Left Behind Act (Open)
Stoneberg, B.D. (2005). Please don't use NAEP scores to rank order the 50 states (Open)
For additional papers available on the web see https://eric.ed.gov/?q=stoneberg

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K-12 Research Idaho Archive/Library

National Assessment of Educational Progress (NAEP)

NAEP 2024 cross-state comparisons for reading and math, grades 4 and 8 (maps) (Link Text)
NAEP 2019-24 Idaho's status among the 50 states (Link Text)
NAEP 2003-24 Idaho's average reading and math scores (Link Text)

Idaho Standards Achievement Tests (ISAT)

ISAT 2025 reading and math effect sizes, grades 3-8 (Link Text)
ISAT 2019-2025 reading and math percentiles, grades 3-8.pdf (Link Text) Note: Has Idaho's education progran served students across the ability levels?

Other Assessments and Data

Pyschometrics, Statistics, and Data Analysis & Reporting