This study compared the effectiveness of Conventional Testing (CT), Liberal Marking (LM) and Confidence Sharing (CS) of scoring objective test in Chemistry. It examined which of the three scoring methods is more effective, reliable and valid. These were...
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This study compared the effectiveness of Conventional Testing (CT), Liberal Marking (LM) and Confidence Sharing (CS) of scoring objective test in Chemistry. It examined which of the three scoring methods is more effective, reliable and valid. These were with a view to enhancing the reliability and validity of chemistry objective test for standard assessment. The population for the study comprised of senior secondary school three (SSSIII) students in Osun State. The sample consists of 150 SSSIII chemistry students in their intact classes from three randomly selected schools and in three randomly selected local government areas of the state. The classes were randomly assigned to the three scoring methods. The instruments used for this study were Chemistry Multiple-choice Test. The 40-item Chemistry multiple-choice test was administered on the students in each school. Three scoring methods used to score the test items. Data collected were analysed using Kuder-Richardson (kp-21) formula an
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