TY  - BOOK
AU  - Polat, Nihat
AU  - Zarecky-Hodge, Ashley
AU  - Schreiber, James B.
TI  - Academic growth trajectories of ELLs in NAEP data: The case of fourth-and eight-grade ELLs and non-ELLs on mathematics and reading tests
SN  - 0022-0671
U1  - Per/370.1/P762/2016 
KW  - Academic achievement
KW  - Educational tests and measurements
KW  - Educational assessment
N1  - Utilizing the National Assessment of Educational Progress (NAEP) data, this study examined (1) how fourth and eight-grade ELLs' mathematics and reading scores on national tests compared to their non-ELL peers' scores over the testing period between 2003 and 2011, and (2) if gender and ethnicity contributed to variation in the growth patterns among the student groups across grade levels and content areas. Since, the NAEP data, which provides a national sample of 10,000-20,000 students, is collected using a probability sample design, sampling weights are adjusted so inferences can be appropriately made. Sample sizes within NAEP are large enough to generate adequate power for statistical significances. Thus, to display the data in a multivariate mode, Tableau 8.0.0 software was used. Results suggested that the achievement gap between non-ELLs and ELLs is either steady or slightly widening in both mathematics are reading, with multiple paths across the content areas, grade levels, and gender and ethnic groups
ER  -