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What Works Clearinghouse


Effectiveness

No studies of the Talent Development Middle Grades Program (TDMG) that fall within the scope of the Dropout Prevention review protocol meet What Works Clearinghouse (WWC) evidence standards. The lack of studies meeting WWC evidence standards means that, at this time, the WWC is unable to draw any conclusions based on research about the effectiveness or ineffectiveness of TDMG.

Program Description1

TDMG is a whole school reform approach for large middle schools that face serious problems with student attendance, discipline, and academic achievement. The program includes both structural and curriculum reforms. It calls for schools to reorganize into small “learning communities” of 200 to 300 students who attend classes in distinct areas of the school and stay together throughout their time in middle school. In addition to structural changes, schools adopting the program purchase one or more curricula that are intended to be developmentally appropriate and to engage students with culturally relevant content. For students who are behind in reading and math, the program provides additional periods devoted to these subjects that include group activities and computer-based lessons. To improve implementation, each school is assigned a team of “curriculum coaches” trained by the developer to work with school staff on a weekly basis to implement the program. In addition, teachers are offered professional development training, including monthly sessions designed to familiarize them with the program and demonstrate effective instructional approaches.

The WWC identified 17 studies of TDMG that were published or released between 1988 and 2008.

Three studies are within the scope of the review protocol and have an eligible design, but do not meet WWC evidence standards.

  • One study does not establish that the comparison group was comparable to the treatment group prior to the start of the intervention.

  • One study does not include any outcomes that are defined for students who have dropped out of school. The Dropout Prevention protocol requires that study outcomes be defined for all students, including those who have dropped out of school.

  • One study has only one school assigned to each research group, so that the effect of TDMG cannot be separated from the effect of the school.

Fourteen studies are out of the scope of the review, as defined by the Dropout Prevention protocol. Two of these studies do not present primary research, and 12 do not examine outcomes within a domain specified in the protocol.

1 The descriptive information for this program was obtained from a publicly-available source: the program’s website (http://web.jhu.edu/CSOS/tdmg, downloaded December 2008). The WWC requests developers to review the program description sections for accuracy from their perspective. Further verification of the accuracy of the descriptive information for this program is beyond the scope of this review.