Adjusting for retained students, systemwide 1998 reading scores are essentially unchanged and math scores fall slightly, but both remain above 1997 levels; the authors judge the promotion policy did not seriously distort the results¶

Claim · All claims
Evidence · 1 study (2 entries) · associational r2 · q2
Currency · newest study 1998 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? After adjustment, systemwide reading scores changed from 34.3 percent to 34.4 percent at or above national norms, and math fell from 39.3 to 38.7 percent, both above the 1997 scores of 30.3 and 35.9 percent. → John Q. Easton 1998

Evidence¶

John Q. Easton 1998¶

John Q. Easton, Brian Jacob, Stuart Luppescu, Melissa Roderick. (1998). Adjusting Citywide ITBS Scores for Student Retention in Grades Three, Six, and Eight. Consortium on Chicago School Research. https://consortium.uchicago.edu/publications/adjusting-citywide-itbs-scores-student-retention-grades-three-six-and-eight

q2 · i? · associational · r2

Re-analysis of 1998 CPS citywide ITBS percent-at-or-above-norms data (Figure 15), comparing unadjusted, adjusted, and 1997 figures. The brief reports reading at 34.3 percent before adjustment and 34.4 percent after, versus 30.3 percent in 1997.

"Before the adjustment, 34.3 percent of students scored at or above national norms in reading; after the adjustment, the number is 34.4 percent. Both of these numbers are higher than 1997, when 30.3 percent of students were at or above national norms."

John Q. Easton 1998 (2)¶

John Q. Easton, Brian Jacob, Stuart Luppescu, Melissa Roderick. (1998). Adjusting Citywide ITBS Scores for Student Retention in Grades Three, Six, and Eight. Consortium on Chicago School Research. https://consortium.uchicago.edu/publications/adjusting-citywide-itbs-scores-student-retention-grades-three-six-and-eight

q2 · i? · associational · r2

The same citywide re-analysis for mathematics, using the percent at or above national norms. The article states the math score falls from 39.3 to 38.7 percent after adjustment, "an increase from the 1997 score of 35.9 percent."

"In math, the 1998 unadjusted score of 39.3 percent falls slightly to 38.7 percent after the adjustment. But the adjusted score still represents an increase from the 1997 score of 35.9 percent."

Discussion¶

Related Claims¶

• Grade-by-grade adjustment magnitudes: removing retained students raises third grade scores about one month in reading and half a month in math, while adjusted fourth grade scores fall about two months in reading and one and a half months in math — related
• Removing retained students' scores raises 1998 ITBS scores in grades three, six, and eight, while adding predicted retained-student scores lowers fourth and seventh grade scores — related