Cross-grade score patterns show self-selection: lower-grade students taking a course-specific test tend to outperform students at the grade the course targets, and upper-grade students tend to underperform them.¶

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 2019 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Average test scores generally decreased as grades increased for each course-specific test, with Grade 7 students highest in Algebra 1 and Geometry and Grade 8 students highest in Algebra 2. → Thum 2019

Evidence¶

Thum 2019¶

Thum, Y. M., & He, W. (2019). Achievement and growth norms for course-specific MAP® Growth™ Algebra 1, Geometry, and Algebra 2 tests. NWEA Research Report. Portland, OR: NWEA. https://www.nwea.org/research/publication/achievement-and-growth-norms-for-course-specific-map-growth-algebra-1-geometry-and-algebra-2-tests/

q2 · i? · associational · r2

Descriptive summary statistics (Table 3.1) of RIT means and SDs by grade and term for Grades 6–12. The report states "average test scores decreased as grades increased" and that Grade 7 students achieved the highest average score in Algebra 1 and Geometry, Grade 8 in Algebra 2; means are descriptive with no significance tests reported.

"With few exceptions, average test scores decreased as grades increased for each course-specific test. Lower-grade students (i.e., Grades 6–8 students) tend to perform better than the students of the grade at which a course is usually targeted"

Discussion¶

Related Claims¶

• Average course-specific test scores decrease as grade level increases, reflecting ability self-selection — possibly the same claim (merge candidate)