In conducting this type of study, one must rule out other differences, such as those in family background or those in state education policies that might also affect student performance over time. (educationnext.org)
Multiple, appropriate measures of student performance quantify Results, with sufficient detail to help the team look at the impact of changes in student performance over time by level, subject and subpopulations. (smartlearningsystems.com)
Had states been required to put in place a data collection system that tracked student performance over time, privacy fanatics would have insisted that every child had a right not to be known, even to those responsible for the child's education. (educationnext.org)