Evaluate Certification Test Items Based on Item Analysis Results
Overview
Premier Testing and Assessment Consulting will evaluate the efficacy of the item analysis of the item analysis results of the Professional Association of Gardeners and Landscaping Professionals certification exam. Even though subject matter professionals created the test, this demonstrates that instructions are required to guarantee the assessment is set up effectively. This report’s conclusion will assess each item’s quality and offer recommendations for each action.
Evaluation Criteria
The production of tests depends on item analysis since it reveals how well each question performs in determining which test takers comprehend the content and which do not (Sturman et al., 2021). The criteria used to assess test items are test item complexity, test security, risk, discrimination, and distractor analysis.
The difficulty of an item is measured by the number of test-takers who properly answered it. Because it enables developers to make well-informed judgments regarding test structure and instructional strategies, an item’s difficulty functions as a criterion in assessing the quality of efficacy of tests. According to Turman et al. (2021), this can be represented as a percentage, where a higher percentage indicates a simpler question and a lower percentage suggests a more challenging one. Developers can better identify which test questions require change or replacement by classifying items. While challenging questions may deter students or fail to gauge their comprehension, easy questions may not distinguish across students’ knowledge levels.
High-performing test takers and low-performing test takers are distinguished by item discrimination (Sturman et al., 2021). It provides insight into how successfully each test item differentiates between different comprehension levels. The percentage of right answers from two groups – the top scorers and the lower group – would be compared in order to compute this. According to Turman et al. (2021), a positive index suggests that the item is good at differentiating between different levels of knowledge because a larger percentage of students in the upper group answered correctly than those in the lower group. Confusion or ambiguity in the question may be indicated by a negative index, which suggests that more students in the lower group provided accurate answers than those in the upper group (Sturman et al., 202). It may not be a good discriminator if the index is around zero, which indicates that both groups performed similarly on that item (Sturman et al., 2021).
A particular type of item analysis known as “distractor analysis” is devoted to analyzing the erroneous answer choices, or “distractors,” in multiple-choice questions. It looks at how well these distractors work to get answers from students who might not be aware of the right response (Forthmann et al., 2020). The objective is to make sure that distractions are convincing enough to elicit answers from students who have misconceptions or incomplete information, while yet enabling competent students to select the right solution.
Test security leads to effective processes used to protect tests and maintain their value, per the International Test Commission Guidelines on the Security of Tests, Examinations, and Other Assessments (2016). Maintaining the validity and reliability of test results depends on this. Test security is important in item analysis because it has a direct effect on the caliber of information gathered from student answers. Maintaining the validity and reliability of test results depends on this. Test security is important in item analysis because it has a direct effect on the caliber of information gathered from student answers.
In summary, a number of things require improvement to guarantee their efficacy and dependability. By carefully addressing these four areas – item difficulty, item discrimination, security, and distractor analysis – you can raise the overall caliber and effectiveness of your test. Some things need to be revised in order to make sure that the staff members are becoming proficient in their talents. Some things should be rewritten according to their difficulty, and distractions should be made more believable.
References
Cohen, R. J., & Swerdlik, M. E. (2018). Psychological testing and assessment: An introduction to tests and measurement (9th ed.). New York: McGraw-Hill.
Forthmann, B., Forster, N., Schutze, B., Hebbecker, K., Flessner, J., Peters, M. T., & Souvignier, E. (2020). How much g is in the distractor? Re-thinking item-analysis of multiple-choice items. Journal of Intelligence, 8(1), 11. https://doi.org/10.3390/jintelligence8010011
The International Test Commission Guidelines on the Security of Tests, Examinations, and Other Assessments, (2016). International Journal of Testing, 16(3), 181-204. https://doi- org.library.capella.edu/10.1080/15305058.2015.1111221
Lane, S., Raymond, M. R. & Haladyna, T. M. (Eds.). (2015). Handbook of test development. Taylor & Francis Group.
Panjaitan, R. L., Irawati, R., Sujana, A., Hanifah, N., & Djuanda, D. (2018). Item validity vs. item discrimination index: a redundancy? Journal of Physics: Conference Series, 983(1). https://doi.org/10.1088/1742-6596/983/1/012101
Sturman, C.W.J.S.R.T.M.S.E. (2021). Psychological Testing and Assessment (10th ed.). McGraw- Hill Higher Education (US). https://capella.vitalsource.com/books/9781264169207
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