Volume 2 - Issue 2, March - April 2026

The Internal Quality Assurance (IQA) guidelines are essential for effective instructional delivery in educational institutions, serving as a framework that promotes continuous improvement, accountability, and high pedagogical standards within the education system. Guided by Deming’s Total Quality Management (TQM) theory, this study examines the Influence of Internal Quality Assurance Guidelines on Teachers’ Instructional Effectiveness in Public Secondary Schools in Morogoro Region, Tanzania. Using a convergent mixed-methods approach that combined both quantitative and qualitative methods guided by the pragmatist research philosophy, the study sampled 371 respondents, including 225 teachers, 100 Internal Quality Assurance Team (IQAT) members, 7 Chief District Quality Assurance Officers (CDQAOs), and 7 District Secondary Education Officers (DSEOs) from the 07 districts in the Morogoro region. Questionnaires were given to teachers for quantitative data collection, while structured interviews with CDQAOs and DSEOs, along with Focus Group Discussions (FGDs) with IQATs, gathered qualitative data. Quantitative data were analyzed descriptively using SPSS version 20, and qualitative data were analyzed using thematic analysis procedures. The findings revealed that IQA guidelines implementation enhances teachers’ instructional effectiveness, particularly in curriculum monitoring, pedagogical supervision, and assessment practices. However, the study also identified contextual barriers, including inadequate resources, shortage of teaching workforce, and limited teacher training on IQA implementation, which constrain the realization of IQA objectives. The study concludes that strengthening IQA mechanisms is fundamental to improving teaching quality and sustaining educational standards in public secondary schools. The study recommends that the Ministry of Education, Science and Technology (MoEST) institutionalize continuous capacity-building programs on IQA operationalization and strengthen schools' IQATs to sustain IQA practices. The policymakers should integrate a teacher feedback mechanism into the IQA system to foster collective ownership of the quality improvement process, and further research should focus on examining the long-term effects of IQA guidelines implementation on learners’ outcomes

Apolonia A. Agaptus, Daniel Mkude, Onesmo Amos,"The Influence of Internal Quality Assurance Guidelines on Teachers’ Instructional Effectiveness: A Mixed-Methods Analysis from Public Secondary Schools in Morogoro Region, Tanzania" International Journal of Advanced Multidisciplinary Research and Educational Development, V2(2): Page(1137-1150) Mar-Apr 2026. ISSN: 3107-6513. www.ijamred.com. Published by Scientific and Academic Research Publishing.