A. Effective Schools and Effective School Practices
Research on effective schools and school practices has clearly demonstrated that schools and school systems can become more effective. The literature describing the research defines effectiveness as:
Effective schools also "add value" to the performance levels of students: The level of student performance increases uniformly the longer students are in school.
Effectiveness levels are achieved by the top 15-20 percent of the student population in each performance and demographic category. In statistical terms, effectiveness levels are those levels achieved at one standard deviation above the mean of the cohort population and are, therefore, rigorous levels of achievement.
When the following practices and objectives are implemented in a school system, the probability increases that the school system will be effective in all areas. These "Correlates of Effectiveness" include:
Effective schools and school systems practice behaviors associated with the conditions (correlates) of effectiveness. More importantly, however, these behaviors are understood, are supported, are practiced, and are observable throughout a school system. Such behaviors can be established through effective school training programs and then adapted to each school system environment. It should be clearly understood that conditions for effectiveness are achieved through the decisions made by adults in the school community and are fully under their direction and control. To this end, effective schools and school systems forge extensive and positive linkages between communities and schools.
B. The Cohort Group
The Process of Matching "Means" Fair Comparisons
An Audit of Educational Effectiveness examines the degree to which the student and staff populations in a school system meet levels of effectiveness. Each school system population is examined against populations nationwide with similar demographics, some of which are currently achieving educational effectiveness and which have firmly established the conditions of effectiveness. The SchoolMatch approach compares student populations rather than school systems in order to provide more fair, accurate, and comprehensive cohort comparisons.
SchoolMatch maintains databases on each of the nation's 15,800 operating public school systems and more than 14,000 accredited private schools. From the SchoolMatch database of public school populations, other student and staff populations in the United States with similar demographic characteristics to the population in the Chesterfield County School Division were identified. This large group is the Chesterfield County School Division cohort group.
Within the Chesterfield County School Division cohort group exist similar populations which have achieved effectiveness in one or more of the areas analyzed by an Audit of Educational Effectiveness (approximately 15-20% of the entire population). Also within the cohort group are student populations which perform at or below the average (mean) for the entire group, in a given category (approximately 15-20% of the population). To form the basis for comparison with these demographically similar populations, SchoolMatch calculates the average (mean) performance level for the cohort group in every category analyzed in the audit process. This demographically-matched set of populations (the cohort group) can be described in terms of the average (mean) in each performance area. As a result, we may refer to the cohort group as the mean-matched group.
Once the averages in each measurable category are calculated, the cohort group is now mean-matched. Once the mean for each category is determined, the effectiveness level (one standard deviation above the mean) can be calculated.
The following graph illustrates the distribution of school system student populations within a mean-matched cohort group in relationship to the cohort average in a given performance category:

C. The Audit of Educational Effectiveness Process
An educational effectiveness audit may include most or all of the following:
The audit also consists of other activities to obtain information about the effectiveness of practices and policies in the school system, including:
D. Collection and Analysis of School Division Data
Auditors use information obtained through various interviews to verify data gathered through data collection forms, documents reviewed before and during the on-site visit (Appendix A), and aggregated responses from perception surveys completed by a sample of parents, teachers, administrators and other school personnel. Professional judgments establish reliability. The continuing observations and analyses of educational researchers have established the validity of effective school practices and the ensuing benefits to school systems that use them. These research data are readily available.
E. The Purpose of an Audit of Educational Effectiveness
The central purpose of an educational effectiveness audit is to identify areas of school system operation or system results that are effective, as well as those areas that can and should be improved. This identification can serve as a basis for school system improvement and for the allocation of resources. The audit may also make recommendations based on the effectiveness of practices in school systems serving similar student populations.
In addition, the audit will assist the school system to:
F. A Sample of Student Populations Demographically Similar to the Population of the Chesterfield County School Division
Among student populations in the more than 15,800 public school systems in the United States, the school systems listed here share similar primary demographic characteristics in the categories of education level of school system residents, per capita income, and poverty level of the community. Secondary qualifiers include relative size of the student population and the percent of the student population qualifying for free or reduced-price lunch.
The districts listed below are not identical to Chesterfield County School Division in all primary or secondary demographic categories. They represent the closest overall matches nationwide to the Chesterfield County student population.
NAME CITY STATE --------------------------------------------------------------------- Paradise Valley Unified Schools Phoenix AZ Poway Unified School System Poway CA Cherry Creek School System Englewood CO Seminole County School System Sandford FL Shawnee Mission Public Schools Shawnee Mission KS Howard County Public Schools Ellicott City MD Anoka-Hennepin Schools Coon Rapids MN Guilford County Schools Greensboro NC Beaverton School System Beaverton OR Plano Independent School District Plano TX
Please be aware that the above listed districts are not aware of their inclusion in this report. They have been selected from the SchoolMatch database. However, we believe that discussions between leaders of the school systems listed and leaders in the Chesterfield County School Division relative to effective school practices may provide information about how demographically similar school systems manage their resources in pursuit of effectiveness.
H. Levels of Achievement
There are four levels of achievement in effectiveness auditing:
Information related to various levels of achievement is provided in Appendix C. Although researchers differ widely on the meaning and use of test data, most agree that test data (or student performance assessments) are one important measurement of the degree to which schools and school systems are effective.
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