CPS elementary school productivity improvements stalled after 1997, with no evidence of significant productivity growth since then¶

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 2002 · checked against its sources 2026-10-20 (automated, 1 of 1 entry) · not reviewed by a person · overdue for a recheck since 2005: local conditions change quickly

Subclaims¶

q2 i? Using average yearly grade-cohort gain scores as a productivity measure, the brief concludes CPS improved student learning through much of the 1990s but that improvements stalled after 1997, with 2001 math gains significantly lower than previous years for most grades. → Todd Rosenkranz 2002

Evidence¶

Todd Rosenkranz 2002¶

Todd Rosenkranz. (2002). 2001 CPS Test Trend Review: Iowa Tests of Basic Skills. Consortium on Chicago School Research. https://consortium.uchicago.edu/publications/2001-cps-trend-review-iowa-tests-basic-skills

q2 · i? · associational · r2

Analysis of yearly reading and math gain scores by grade cohort, 1994-2001, reported in the Trends in Learning Gains section, Figure 4, and Table E. The brief treats rising gains as increasing productivity and stagnant gains as stagnant or declining productivity.

"While the gain scores indicate that CPS made improvements in stu- dent learning throughout much of the 1990s, the im- provements stalled after 1997. There is no evidence of any significant productivity growth in elementary schools since that time."

Discussion¶

Related Claims¶

• CPS elementary ITBS scores improved across the 1990s in both reading and math for all age groups, but trend gains flattened after 1998 — related
• CPS academic productivity gains peaked in 1997, with 1999 gains uniformly lower than 1997 gains at all grades — a narrower finding that bears on this claim
• After adjustments for inclusion-rule changes, CPS elementary test scores continued to improve through 1999, with long-term math gains across all grades but slowing reading improvement at ages 9, 11, and 12 — reports the opposite
• CPS learning gains were consistently higher in all grades in 1996 than in 1994, but 1999 gains declined slightly relative to 1997 in all grades except third, suggesting productivity gains may have peaked — related
• Judging school improvement requires reading learning gain trends and output trends simultaneously, since either trend monitored alone can mislead — related
• Standardized test scores change so slowly that even schools making exceptional gains may appear stagnant — related
• For cohorts born since 1990, reading progress increased while math progress slowed — related
• Productivity profiles in adjacent grades are negatively related, so judging a school from selected grades alone can be very misleading — related
• ITBS test form progression systematically influences eighth-grade math gain scores, with Form L-to-M years showing the largest gains and Form K-to-L years the smallest — related
• Reading score trends flattened for ages 9-12 and declined at ages 9 and 12 in the grade equivalent metric by 2000 — a narrower finding that bears on this claim
• All six CPS age cohorts saw a slight 2001 decline in math scores of less than one month, which a Rasch-score re-analysis suggests reflects an actual drop in learning rather than test-form effects — a narrower finding that bears on this claim