The clarification provided by Williams and Zimmerman on the reliability of gain scores is translated into recognizable patterns of change that tend to produce reliable or unreliable gain scores. The relevance of the traditional idea of reliability to the measurement of change is also discussed. (SLD)

Finds several difficulties with the theory advanced by R. Howard and shows that alternative explanations relating to changes in the chess environment, including increased access to chess knowledge, offer better explanations for the increased presence of young players at top-level chess. (SLD)

The reliability of a gain is determined by the reliabilities of the components, the correlation between them, and their standard deviations. Reliability is not inherently low, but the components of gains in many investigations make low reliability likely and require caution in the use of gain scores. (SLD)

The critiques by L. Collins and L. Humphreys in this issue illustrate problems with the use of gain scores. Collins' examples show that familiar formulas for the reliability of differences do not reflect the precision of measures of change. Additional examples demonstrate flaws in the conventional approach to reliability. (SLD)

L. Weiner (2003) argues that research reports from High Performance Learning Communities were biased because of the close relationship of researchers and reform leaders. Asserts that the data support the original contentions about the value of the reform effort as a model. (SLD)

L. Weiner (1003) and L. Resnick (2003) have advanced sharply different views about the success of reforms in Community School District 2 in New York City. It is possible that Weiner's views are more objective. Notes that criticisms of scholarly work are neither personal nor unscientific, and are quite common. (SLD)

In a recent report, Lewis Solmon, Kern Paark, and David Garcia (2001) seek to identify the impact of attending charter schools on student achievement using data from Arizona. Based on a sophisticated statistical analysis, these authors report that charter school attendance increases test score gains of students. This note raises some questions…

Analyzes the findings of J. Greene and data from Florida and suggests that the strong effects (significant improvement on test scores in schools threatened by vouchers) noted by Greene may actually be due in large part to sample selection, regression to the mean, and problems related to the aggregation of test score results. (Author/SLD)

Discusses the strengths of the Third International Mathematics Study (TIMSS) and the TIMSS--Repeat (TIMSS-R) and considers the impact of this impressive achievement in international cooperation that will enhance the level of information about schooling in the United States and elsewhere. (SLD)

Re-analyzes data from Florida public schools and offers a different perspective and alternative explanation for the pattern of test score improvements among low scoring schools in Florida. Shows that the most dramatic improvements were achieved by targeting a minimum passing score on the writing test. (SLD)

Reviewing the results of the Third International Mathematics and Science Study-Repeat (TIMSS-R) shows that U.S. eighth graders are about average in mathematics and science when compared to students in other countries. The primary lesson from the TIMSS-R is that children learn what they are taught. (SLD)

In "The Manufactured Crisis," D. Berliner and B. Biddle argue that there has been no decline in achievement test scores, that today's students outperform their parents and do well in international examinations, and that the supposed crisis in American education does not exist. This review refutes all these claims. (SLD)

In their arguments that there is actually no crisis in American education and that students are achieving more than previous generations, David Berliner and Bruce Biddle have ignored or dismissed extensive data on student achievement that demonstrate the failings of the American system. (SLD)

Lawrence C. Stedman's comments on the book "The Manufactured Crisis" focus on a small portion of its arguments and ignore the real evidence in support of the achievements of America's schools. The schools are more the victims, than the perpetrators, of American social problems. (SLD)