1. ITEM ANALYSIS OF SUMMATIVE ADVANCED LEVEL BIOLOGY EXAMINATIONS.
- Author
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Azzopardi, Marthese and Azzopardi, Carmel
- Subjects
EXAMINATION item analysis ,BIOLOGY education ,POSTSECONDARY education ,LEARNING ,ABILITY grouping (Education) - Abstract
The results of examinations taken by Maltese post-secondary students learning Advanced level Biology at the end of their first year is crucial in the advancement of their careers. The objective of the study was to statistically analyse the examination scores and calculate the difficulty index of the entire paper and individual items in paper 1 over the period 2014-2018. Controlling or balancing the item difficulty of an examination improves its validity. Scores were slightly positively skewed in three out of the five years studied, showing that students attained more low scores than high ones. A score in the region of 50% was attained by the majority of students in all years studied and scores never exceeded 85%. The mean score for all years was 49±11.58% and the range of scores, exceeded 61 in all years investigated. This indicates that the students investigated form a heterogeneous group. Results show that items were restricted in the level of difficulty: none were 'easy'. This study showed that paper setters consistently designed examination questions of an overall 'moderate' level of difficulty (0.40) which is below the optimal value of 0.50. The value of this study is that future examinations can be improved when items from past papers with known difficulty index are reused. Another value of this investigation is that close examination of items reveals which questions were most difficult, thus indicating a concept that needs to be taught more thoroughly as well as provides an opportunity to identify common misconceptions among students. Another result of this study is that students encountered difficulties when answering questions at various levels of cognition. [ABSTRACT FROM AUTHOR]
- Published
- 2019