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Error in variable testing condition
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For each combination of answer and choice, specify the number of marks to add or subtract when the student picks it.
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This is an extension type part. There is no expected answer, and it's assumed that the marking depends on interactions within the part's prompt.
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In order to create a variable replacement, you must define at least one variable and one other part.
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The variable replacements you've chosen will cause the following variables to be regenerated each time the student submits an answer to this part:
These variables have some random elements, which means they're not guaranteed to have the same value each time the student submits an answer. You should define new variables to store the random elements, so that they remain the same each time this part is marked.
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This question is used in the following exam: