How to Ace Texas Go Math! Grade 8: PDF Download with Tips, Tricks, and Practice Problems
The data analysed were from the Texas subsample of the 2005 national NAEP math survey for the age 10/grade 4 cohort, using the 70-item Numbers and Operations scale. As we noted in Chapter 1, the survey design was changed after 2001 to use states as the primary sampling units, and schools were sampled within the state with probability proportional to size, with oversampling of high-minority schools and minority students within schools. It is not clear from the NAEP technical manuals how the school design effect is allowed for in the current analysis. For the multilevel model analysis, the separate state analysesmean that there is no PSU sampling level, so only the three-level model is needed.