Christmas Kasgak Dungritdi and Dr. Obadiah Mwoltok Dalong

Effects of Portfolio Assessment Technique on Students’ Academic Achievement on Graphics-Related Concepts in Economics in Plateau State


The study explored the effects of portfolio assessment technique on students’ academic achievement on graphics-related concepts in Economics in Plateau State. The study employed a quasi-experimental research design. Specifically, the non-randomised pre-test post-test control group design, in which intact groups were assigned to the experimental and control groups. The population consisted of all senior students of public secondary schools in Pankshin Local Government Area of Plateau State and and a sample of 156 students were chosen. The instrument used for data collection was the Graphics-related Concepts in Economics Achievement Test (GRCEAT). The Mean, Standard Deviation, and Simple Percentage were used to answer the research questions. At the same time, Analysis of Covariance (ANCOVA) and (ANOVA) were employed to test the hypotheses at a 0.05 significance level. The study revealed that students in the experimental group had higher achievement mean scores after treatment using the portfolio assessment technique compared to those in the control group who were not given treatment, with a mean difference of 21.37. The findings also showed that male students had higher achievement mean scores than female students after treatment using the Portfolio assessment technique with a mean difference of 1.77. Based on the findings, it was recommended that the government give proper care and support to learners in the area of their interest, and students' motivation should be adequate to enhance their skills. Keywords: Portfolio assessment, academic achievement, graphics-related concepts in Economics

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