Assessment, feedback and the alchemy of learning

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Abstract

Models of sound assessment practices increasingly emphasise assessment's formative role. As a result, assessment must not only support sound judgements about learner competence, but also generate meaningful feedback to guide learning. Reconciling the tension between assessment's focus on judgement and decision making and feedback's focus on growth and development represents a critical challenge for researchers and educators.

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Test-enhanced learning: taking memory tests improves long-term retention.

Henry L. Roediger, Jeffrey D Karpicke (2006)

Taking a memory test not only assesses what one knows, but also enhances later retention, a phenomenon known as the testing effect. We studied this effect with educationally relevant materials and investigated whether testing facilitates learning only because tests offer an opportunity to restudy material. In two experiments, students studied prose passages and took one or three immediate free-recall tests, without feedback, or restudied the material the same number of times as the students who received tests. Students then took a final retention test 5 min, 2 days, or 1 week later. When the final test was given after 5 min, repeated studying improved recall relative to repeated testing. However, on the delayed tests, prior testing produced substantially greater retention than studying, even though repeated studying increased students' confidence in their ability to remember the material. Testing is a powerful means of improving learning, not just assessing it.

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Test-enhanced learning in medical education.

Douglas Larsen, Andrew Butler, Henry L. Roediger (2008)

In education, tests are primarily used for assessment, thus permitting teachers to assess the efficacy of their curriculum and to assign grades. However, research in cognitive psychology has shown that tests can also directly affect learning by promoting better retention of information, a phenomenon known as the testing effect. Cognitive psychology laboratory studies show that repeated testing of information produces superior retention relative to repeated study, especially when testing is spaced out over time. Tests that require effortful retrieval of information, such as short-answer tests, promote better retention than tests that require recognition, such as multiple-choice tests. The mnemonic benefits of testing are further enhanced by feedback, which helps students to correct errors and confirm correct answers. Medical educational research has focused extensively on assessment issues. Such assessment research permits the conclusion that clinical expertise is founded on a broad fund of knowledge and effective memory networks that allow easy access to that knowledge. Test-enhanced learning can potentially strengthen clinical knowledge that will lead to improved expertise. Tests should be given often and spaced out in time to promote better retention of information. Questions that require effortful recall produce the greatest gains in memory. Feedback is crucial to learning from tests. Test-enhanced learning may be an effective tool for medical educators to use in promoting retention of clinical knowledge.