Effective instructional planning and intervening rely heavily on accurate understanding of
students' growth, but relatively few researchers have examined mathematics achievement …

Using longitudinal data from the first 6 waves of the Early Childhood Longitudinal Study–
Kindergarten Cohort (ECLS-K), the authors examined mathematics achievement and growth …

This study examined mathematics achievement growth of students without disabilities
(SWoD) and students with learning disabilities (LD) and tested whether growth and LD …

Objective: Accurate estimation of developmental trajectories can inform instruction and
intervention. We compared the fit of linear, quadratic, and piecewise mixed-effects models of …

This study estimated mathematics achievement growth trajectories in a statewide sample of
92,045 students with and without disabilities over Grades 3 to 7. Students with disabilities …

We examined to what extent subgroups of students identified with learning disabilities (LDs;
N= 630) in the Early Childhood Longitudinal Study, Kindergarten Class of 1998 to 1999 …

Some students may be diagnosed with a learning disability in mathematics or dyscalculia,
whereas other students may demonstrate below-grade-level mathematics performance …

The present study examined the relation between middle school transitions and
achievement gaps in math and science between adolescents with and without learning …

This study examined math growth trajectories by disability category, gender, race, and
socioeconomic status using a nationally representative sample of students ages 7 to 17. The …

The investigators used data from the Early Childhood Longitudinal Study—Kindergarten
Cohort (ECLS-K) to estimate whether and to what extent the timing and persistence of …