Effects of Portfolio Assessment Technique on Senior Secondary School Students’ Achievement in Economics in Pankshin, Plateau State, Nigeria

The study focuses on effects of portfolio assessment technique on senior secondary school students’ achievement in economics in Pankshin, Plateau State, Nigeria. Three purpose of the study was formulated alongside research questions and hypotheses. The study adopted the quasi-experimental research design. The population of the study consisted of all the Senior Secondary Two (SSII) students offering economics in public and private secondary schools within Pankshin metropolis of Plateau State. There were eight public and eight private secondary schools in Pankshin metropolis giving a total of 16 secondary schools that met the criteria with a population of 546 students that offer economics, made up of 237 boys and 307 girls. The sample of the study is four senior secondary schools comprising of two public and two private schools out of the 16 senior secondary schools within the area of the study. The schools were assigned to the experimental and control groups. One public and one private secondary school is assigned to experimental group and the other public and private school is assigned to control group. The study adopted proportionate stratified sampling technique in selecting the sample for the study. Two instruments are used for the study. The instruments used are the Economic Achievement Test (EAT) and the Economic Attitude Questionnaire (EAQ). The study adopted both descriptive and inferential statistics for the study. The descriptive statistics of frequency distribution tables, simple percentages, means and standard deviation were used for answering the research questions, while the Analysis of Covariance (ANCOVA) was used for testing the hypotheses formulated for the study at 0.05 level of significance. The result of the finding revealed that in the experimental group, the post-test achievement mean score was 62.740 and standard deviation of 11.906, higher than the pre-test mean score of 29.364 and standard deviation of 11.031 with a mean gain of 33.376., indicating that there was improvement in the achievement of students in Economics after treatment. The study recommend that Government should be proper care-giving support to learners on the area of their interest. Students motivation should be adequately to enhance the level of skills in them