"Each multiple choice question should have, ideally, 5 alternatives, one of which is the correct answer (the "key"). In some instances, 5 options are not appropriate, and 4 - 6 options are acceptable."
"ranges: e.g. 0-5, 6 -10, 11-15"
"non-overlapping rangesavoid overlapping numeric or verbal ranges i.e. 0-5, 5-10 (5 is repeated). Instead, use 0-5, 6-10."
"values: e.g. 2, 6, 8, 12, 20"
"ranges: e.g. 0-5, 6 -10, 11-15"
"density/intensity: e.g. hypodense, isodense, hyperdense"
"anatomic: e.g. head, neck, chest, abdomen, pelvis"
"compound answers: alternatives such a "B & C" or "A, B and D" are to be avoided"
"all or none of the above: it is generally better to have fewer alternatives than to add filler alternatives such as these"
"silly or obvious alternatives: obviously correct or obviously incorrect answers, even if humorous, detract from learning"
"clueing: the correct answer can be guessed without any actual knowledge of the topic. Examples of some types of clues to be avoided:"
"short"
"similar in length"
"similar content"
"similar scaleif numbers are used in the alternatives, they should all be in the same unit of measure"
"non-overlapping rangesavoid overlapping numeric or verbal ranges i.e. 0-5, 5-10 (5 is repeated). Instead, use 0-5, 6-10."
"balanced alternativesIf 3 alternatives have the word aorta in it, then you probably need 3 other alternatives with a repeated word to ensure that no clue is present"
"values: e.g. 2, 6, 8, 12, 20"
"ranges: e.g. 0-5, 6 -10, 11-15"
"density/intensity: e.g. hypodense, isodense, hyperdense"
"anatomic: e.g. head, neck, chest, abdomen, pelvis"
"compound answers: alternatives such a "B & C" or "A, B and D" are to be avoided"
"all or none of the above: it is generally better to have fewer alternatives than to add filler alternatives such as these"
"silly or obvious alternatives: obviously correct or obviously incorrect answers, even if humorous, detract from learning"
"clueing: the correct answer can be guessed without any actual knowledge of the topic. Examples of some types of clues to be avoided:"
"compound answers: alternatives such a "B & C" or "A, B and D" are to be avoided"
"The style of alternatives should be similar to that of bulleted and numbered lists for the rest of Radiopaedia. In other words, they should not be capitalised (except if a proper noun or acronym etc...) nor should they end with full stops."
"The style of alternatives should be similar to that of bulleted and numbered lists for the rest of Radiopaedia. In other words, they should not be capitalised (except if a proper noun or acronym etc...) nor should they end with full stops."
"The exception to this rule is if each alternative is a complete sentence or if the question is a 'complete the sentence' sort of question (i.e. where the stem finished in ... )."
Expected headings
"Best practices"
"Length and content"
"Order"
"Avoid"
"Style"
"compound answers: alternatives such a "B & C" or "A, B and D" are to be avoided"