I could not find the 8th grade data they cite in my visit to the NCES website. ... there were 13 of 36 cases displayed for 4th grade math and 15 for 8th grade math) and that the analysis excluded Texas, a state with high reported gain scores.
|Title||:||Teacher Education: Globalisation, standards and teacher education|
|Author||:||David Hartley, Maurice Whitehead|
|Publisher||:||Taylor & Francis - 2006|