Peer reviewedERIC Number: EJ412536
Record Type: Journal
Publication Date: 1990
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Abstractor: N/A
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A Refined Item Digraph Analysis of a Proportional Reasoning Test.
Bart, William M.; Williams-Morris, Ruth
Applied Measurement in Education, v3 n2 p143-65 1990
Refined item digraph analysis (RIDA) is a way of studying diagnostic and prescriptive testing. It permits assessment of a test item's diagnostic value by examining the extent to which the item has properties of ideal items. RIDA is illustrated with the Orange Juice Test, which assesses the proportionality concept. (TJH)
Descriptors: Diagnostic Tests, Evaluation Methods, Item Analysis, Mathematical Models, Test Validity
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
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Language: English
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