From the position 30 years ago that schools make no difference, there is now the assumption that schools affect children’s development; that there are observable, valuable routines and programs within the schools, and that the task of educational policies is indeed, to improve schools (Reynolds & Teddlie, 2000). Levine and Lezotte (1990) define school effectiveness as the production of a desired result or income. Glickman, Gordon, and Ross-Gordon (2001) delve deeper into the requirements stating “a successful school is foremost an organization that defines good education for itself, through its goals and desired practices, and then actively pursues achieving that vision” (p.39).

Researchers from the effective schools movement have identified characteristics that are associated with enhanced student outcomes, especially achievement (Stoll, 1992). Two major categories became dominant during the research into the effectiveness of schools during the late 1970's and early 1980"s:
1. Family Characteristics: Academic outcomes were linked to the characteristics of students and their parents. Family income and ethnicity were most commonly cited.
2. School Characteristics: The researchers examined the characteristics of the schools and the nature and methods of the staffs in relationship to the achievement of their students.
The majority of researchers concluded that differences in student learning could not be explained using family background as the major determinant. Instead, they found that the characteristics of the school and its staff had a significant impact on student achievement (Sutherland, 1992).

Effective schools research has greatly influenced our school system today. “Soon after publication of the first effective schools studies, school (boards) across the nation began to plan and implement programs designed to apply the research to their own schools” (Glickman, Gordon, & Ross-Gordon, 2001, p. 44). Nonetheless, the effective schools research provided a “vision for a more desirable place for schools to be, but gave little insight as to how best to make the journey to that place” (Stoll, 1992, p. 104).

There were some major problems with this strategy, one being a top-down approach of how schools should become more effective, with little understanding as to how this should occur. Principals felt dutifully bound and solely responsible for making their school more effective, but had no direction or confidence in their ability to lead major changes. Teachers felt that the move to be more effective was, in fact, an implication that they were inadequate. Furthermore, the effective schools research is correlational, suggesting that there is a significantly positive relationship between the “identified characteristics and the chosen measure of school effectiveness, but the research has not shown that these characteristics cause the effectiveness they have been associated with” (Glickman, Gordon, & Ross-Gordon, 2001, p. 44).

Although effective schools research is still ongoing, over the last several years school improvement research has become the focus. Only when school effectiveness research is merged with school improvement research can planned change and staff development occur to empower and support growth towards effectiveness (Stoll, 1992). School effectiveness research studied what effective schools would look like, taking into consideration such things as test results and organizational structure. However, school improvement research centered on how schools could improve over time.

Eleven Key Factors of School Effectiveness

There are several characteristics associated with improving schools (Glickman, Gordon, & Ross-Gordon, 2001, p. 49):

  • varied sources of leadership (including teacher leadership)
  • consideration of individual school context and culture
  • parental involvement
  • shared vision with continuous revisions
  • external and internal support, including time, moral, and technical support
  • focus on teaching and learning
  • ongoing professional development
  • instructional dialogue
  • teacher collaboration
  • democratic, collective inquiry
  • integration of improvement efforts into a coherent program
  • data-based feedback on improvement efforts

Clearly there is a connection between effective schools research and school improvement research. “Effects research has informed and provided a foundation for school improvement research. Together, the two types of studies provide us with a knowledge base for developing successful schools” (Glickman, Gordon, & Ross-Gordon, 2001, p. 49-50). Many of the characteristics of effective and improving schools are present in professional learning communities. These commonalities contribute to the success of professional learning communities, and professional learning communities help to establish successful schools with improved student learning.