Abstract
This study assessed the moderation process for valid Mathematics teacher-made test (TMT) results and their implications for national performance in secondary schools in Zanzibar. Grounded in Classical Test Theory (Novick, 1968), the study employed a convergent design under a mixed-methods approach. The target population included 3,768 individuals from 30 public schools, including students, heads of schools, Mathematics teachers, and ZEC subject coordinators. A sample of 436 respondents was selected using purposive and proportionate stratified random sampling techniques. Data collection instruments included interview guides, document analysis guides, and questionnaires. Instrument validity was confirmed by three education research experts who supervise postgraduate students from MWECAU. At the same time, reliability was assessed using the Cronbach Alpha method (r = 0.774 for teacher questionnaires and r = 0.759 for student questionnaires). Ethical guidelines were strictly followed throughout the research. Quantitative data were analysed using descriptive and inferential statistics, while qualitative data were subjected to thematic analysis. The findings revealed a significant gap between teachers' perceptions (high extent) and students' (moderate extent) about quality of test Moderated to enhance students Mathematics performance. The finding of the hypothesis testing reveals low credibility of Mathematics TMT in enhancing students' academic achievement, indicating a need for improving moderation process, assessment procedures and teacher training to align TMT with National Examinations Standards. However, interviews and document reviews highlighted inadequacies in moderation and potential grading biases. These findings underscore the need for improving TMT to support students in teaching and learning to enhance students' performance in Mathematics in FTNE. The study concludes that enhanced communication and greater teacher involvement in moderation are essential for fair and reliable assessments. It recommends the implementation of structured moderation processes and the promotion of open communication to improve the effectiveness of Mathematics TMTs and support student success in FTNA.
Keywords
References
- Akendita, P. A., Arthur, Y. D., & Asare, B. (2025). Moderated effect of teachers' efficacy on the relationship between students' perception of mathematics and students' mathematics achievement. International Journal of Didactical Studies, 6(1), 28932 https://doi.org/10.33902/ijods.202528932DOI ↗Google Scholar ↗
- Asare, B. (2025). Moderating effect of teacher–student relationship and mediating role of self-efficacy on the relationship between peer-assisted learning and mathematics performance. Front. Educ. 9:1450499. doi: 10.3389/feduc 2024.1450499.DOI ↗Google Scholar ↗
- Baker, F. B., & Kim, S. H. (2018). Item Response Theory: Parameter Estimation Techniques. New York: CRC Press.Google Scholar ↗
- Black, P., & Wiliam, D. (2021). Assessment Framing: An Introduction. Assessment in Education: Principles, Policy, Practice, 28(1), 1-10. https://doi.org/10.1080/0969594X.2020.1860630DOI ↗Google Scholar ↗
- Cronin, Anthony, Mullen, Claire, Taylor, Laura K., Liu, Chang Uri (2021). evaluating the impact of mathematics support using moderation, http://hdl.handle.net/10197/25988 2024-05-21T09:48:15ZGoogle Scholar ↗
- Cohen, A., Glick, P., & Barlow, J. (2018). "The Role of Inclusion in Intergroup Relations: A Study of Ethnic Minorities," Journal of Social Issues, 10.1111/josi 12270, 345-364.DOI ↗Google Scholar ↗
- Creswell, J. W., & Creswell, D. (2023). Research Designing, Qualitative, Quantitative, and Mixed Methods Research Approaches. (6th Ed.). Sage Publications. InGoogle Scholar ↗
- Creswell, J. W., & Creswell, J. D. (2018). Research Design: Qualitative, Quantitative and Mixed Methods Research (5th ed.). Sage Publications IncGoogle Scholar ↗
- CIRA (2023) ZEC, Candidates' Items Responses Analysis in evaluation report for Form Two National Examinations in Basic Mathematics Subject (044), Zanzibar. Retrieved from [URL]Google Scholar ↗
- EDZ, (2019). (PDF) Education Policy Implementation: A Mechanism for Enhancing Primary Education Development in Zanzibar. Retrieved from researchgate.netGoogle Scholar ↗
- Eman, M. A. E. (2023). Relationship between examination anxiety and computer experiences.Google Scholar ↗
- Embretson, S. E., & Reise, S. P. (2021). Item Response Theory for Psychologists. Psychology Press. https://doi.org/10.4324/9781315779530DOI ↗Google Scholar ↗
- Fosu, A., Osei, A., & Agyemang, E. (2023). The mediation and moderation effect of mathematics interest and teaching quality between self-concept and mathematics achievement. Journal of Educational Research, 116(2), 123-135.Google Scholar ↗
- Fosu, M. A.; Boateng, Y. D., & Adu-Obeng, B. (2023). mediation and moderation effect of mathematics interest and teaching quality on the relationship between self-concept and mathematics achievement. Journal of Mathematics & science teacher, 3(1), em 024 .https://doi.org/10.29333/mathsciteacher/12622DOI ↗Google Scholar ↗
- Hamisi, M., & William, F. (2020). Contributions of the Acquired Literacy and Numeracy Education Support (Lanes) Professional Development Skills on Enhancing Literacy Skills to Std I and II Pupils in Tanzania. Malaysian Online Journal of Education, Vol. 4(No. 1), 59–68.Google Scholar ↗
- Harahap, D. H., Sahrani, R., & Dewi, F. I. R. (2023). The Efficacy of Mathematics as a Moderator on the Relationship between Teacher Support and Middle School Students' Academic Engagement. Universitas Tarumanagara, Indonesia. Email: devihaerani88@gmail.com (*Corresponding Author), rianas@fpsi.untar.ac.id, fransiscar@fpsi.untar.ac.id.Google Scholar ↗
- Jiang, H. (2023). Expectancy Theory and Student Motivation: A Review. Journal of Educational Psychology, 115(2), 245-260. https://doi.org/10.1037/edu0000587DOI ↗Google Scholar ↗
- Johnson, L. (2022). Impact of teaching quality on student achievement: student evidence. Frontiers in Education. [Link]Google Scholar ↗
- Kauffman, J. M., & Landrum, T. J. (2022). Assessment and Learning: A Comprehensive Guide. Routledge. https://doi.org/10.4324/978100319123DOI ↗Google Scholar ↗
- Lee, J., Kim, H., & Park, S. (2023). The impact of moderated assessments on student engagement and performance in mathematics. International Journal of Educational Research, 112, 101-110.Google Scholar ↗
- Lord, F. M., & Novick, M. R. (1968). Statistical Theories of Mental Test Scores. Reading, MA: Addison-Wesley.Google Scholar ↗
- Mhando, L. & Mgaiwa, B. (2021). Assessment practices in Tanzanian schools: Challenges and perspectives. Journal of Education and PracticeGoogle Scholar ↗
- Mhando, L., Morrow, J., & Kapinga, A. (2020). Quality of Assessment in Tanzanian Education: A Review of Literature. African Educational Research JournalGoogle Scholar ↗
- Müller, A. (2023). Effect of test anxiety on students' academic performance in mathematics at the senior high school level. Discover Education. European Journal of Psychology of Education.Google Scholar ↗
- Ogula, P. A., Ogoti, E. O., & Maithya, P. M. (2018). Educational and Social Science Research Advanced Short Courses: A Guide for Facilitators. Kenya, Society of Educational Research and EvaluationGoogle Scholar ↗
- Owusu, A., Boateng, S., & Adomako, E. (2021). Mathematics interest and teaching quality mediate the relationship between self-concept and mathematics achievement. Educational Review.Google Scholar ↗
- Pang, M. F., Shimizu, H., & van der Sanden, J. (2019). Collaborative assessment moderation: Exploring perspectives and practices. Assessment & Evaluation in Higher Education.Google Scholar ↗
- Puspita, R. (2019). Analysis of validity and reliability of a teacher-made test: Case study at XI Grade of SMA N 6 Bengkulu. Journal of Education and Practice, 10(12), 45-52.Google Scholar ↗
- Rasch, G. (1980). Probabilistic Models for Some Intelligence and Attainment Tests. Chicago: University of Chicago PressGoogle Scholar ↗
- URT. (2021). National Examinations Council of Tanzania (NECTA), Guidelines on Assessment Procedures for Secondary Schools and Professional Level. The National Examinations Council of Tanzania: Dar es Salaam, TanzaniaGoogle Scholar ↗
- VSO International. (2019). Leading Learning: A report on effective school leadership and quality education in Zanzibar. Retrieved from vsointernational.orgGoogle Scholar ↗
- Schmidt, L., Garcia, R., & Thompson, P. (2023). Moderation processes in educational assessments: A European perspective. Assessment in Education: Principles, Policy & Practice.Google Scholar ↗
- Shimizu, Y. (2025). Learning engagement as a moderator between self-efficacy, math anxiety, use of diagrams, and complex plane problem-solving. Volume 21, Issue 2, em2586 https://doi.org/10.29333/ejmste/15956DOI ↗Google Scholar ↗
- Setiawan, R. (2023). Analysing the validity and reliability of teacher-made tests in Indonesia. Asia Pacific Journal of Education.Google Scholar ↗
- Takunyaci, M., & Aydin, M. (2021). Implementation of a Group Moderation Assessment Model in an open-ended Math examination. Journal of Mathematics Education, 14(1), 1-15.Google Scholar ↗
- Tan, M., & Saligumba, R. (2019). Development of valid and reliable teacher-made tests for Mathematics. Philippine Journal of Education, 98(1), 23-34.Google Scholar ↗
- The WCED (2024) Internal Moderator report provides a per-question qualitative analysis of the learners' NSC examination question paper. Attribution-NonCommercial-NoDerivativesGoogle Scholar ↗
- Wedel, M. (2021). Instruction time and student achievement: The moderating role of teacher qualifications. Educational Studies, 47(3), 345-362Google Scholar ↗
- Wilson, M., & Allen, D. (2020). Evaluating Educational Assessment: A Multi-Method Approach. New York: Routledge.Google Scholar ↗
- World Bank. (2020). Zanzibar Improving Quality of Basic Education Project. World Bank Documents and ReportsGoogle Scholar ↗
- Yılmaz, M. (2022). Group moderation in mathematics assessments: Enhancing reliability through collaborative evaluations. International Journal of Education and Pedagogy.Google Scholar ↗
- ZEC (2019-2023) Zanzibar Examination Council basic statistical report of form two national examinations in ZanzibarGoogle Scholar ↗
- ZEC (2023) Candidates' Items Responses Analysis in the evaluation report of form two national examinations in ZanzibarGoogle Scholar ↗