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Penalty for wrong answers

Source: vignettes/penalty.Rmd
penalty.Rmd

In WISEflow, you can set a penalty for incorrect answers to multiple-choice questions. The penalty is -points_possible/(n-1), where n is the number of answer options. This ensures that the expected score from guessing is zero.

An extra answer option will be added to allow users to abstain from guessing. (Default text “I will to leave this question unanswered.”) Technically, it is implemented as an answer option which is “correct” (to avoid the penalty) but gives zero points.

Limitations:

  • This is only possible in WISEflow. Canvas does not offer a penalty on multiple choice questions.
  • examiner does not offer this option separately for each question; it applies to all multiple-choice questions throughout the quiz.
  • The penalty is points_possible/(n-1) even if there is more than one correct answer option. (In which case the penalty would have to be -#correct/#incorrect, but that is not implemented.)

To include such a penalty, put one of the following in the YAML header of your quiz file:

wiseflow_options:
  penalty: true

or specify a custom wording of the abstain option:

wiseflow_options:
  abstain: "Eg ønskjer å la dette spørsmålet stå usvara."

Also, abstain: true is a synonym for penalty: true.

The option is passed to wiseflow_export_items().