In fifth-grade reading, ITBS scores declined significantly more than ISAT scores from 1999 to 2002¶

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 2003 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Fifth-grade reading scores declined on both tests 1999 to 2002, but the ITBS showed a significantly greater decline than the ISAT. → Easton 2003

Evidence¶

Easton 2003¶

Easton, J. Q., Correa, M., Luppescu, S., Park, H.-S., Ponisciak, S., Rosenkranz, T., & Sporte, S. (2003). How Do They Compare? ITBS and ISAT Reading and Mathematics in the Chicago Public Schools, 1999 to 2002. Consortium on Chicago School Research. https://www.consortium-chicago.org/publications/briefs/onlineresources.html

q2 · i? · associational · r2

Citywide trend analysis of standardized average scale scores (Figures 6 and 7), with each test centered on its cut score and axes calibrated in standard deviation units, for grades three, five, and eight, 1999 to 2002. The article reports the ITBS indicating "a significantly greater decline than the ISAT."

"Fifth-grade reading scores, on the other hand, declined over this period on both tests. In this instance, the ITBS is indicating a significantly greater decline than the ISAT."

Discussion¶

Related Claims¶

• In fifth-grade mathematics, ITBS scores declined while ISAT scores rose, a statistically significant difference in opposing trends — related
• ITBS and ISAT inclusion rules differ: ISAT reports scores for all test-takers, while about 20 percent of ITBS test-takers are excluded from public reporting — related
• ITBS and ISAT scores are highly correlated among CPS students in reading (r = 0.83 to 0.85) and mathematics (r = 0.86 to 0.87) — related
• ISAT scores are not comparable over time: students with identical earlier and later test scores earned different seventh-grade ISAT scores depending on the year tested — related
• ITBS mathematics is heavily weighted toward computation while ISAT contains up to three times as many items on algebra, geometry, measurement, and probability and statistics — related
• CPS elementary ITBS scores improved across the 1990s in both reading and math for all age groups, but trend gains flattened after 1998 — related