The element lcTrueFalse was deprecated in DITA version 1.3. It was replaced with the lcTrueFalse2 element. It was originally intended to present the learner with two choices, one correct, the other incorrect, often presented as true/false or yes/no responses.
+ topic/fig learningInteractionBase-d/lcInteractionBase learning-d/lcTrueFalse
<!--True - False Interaction --> <lcTrueFalse id="tf1"> <title>True - False sun rising</title> <lcQuestion>On Earth, the sun rises in the West and sets in the East.</lcQuestion> <lcAnswerOptionGroup> <lcAnswerOption> <lcAnswerContent>True</lcAnswerContent> </lcAnswerOption> <lcAnswerOption> <lcAnswerContent>False</lcAnswerContent> <lcCorrectResponse/> </lcAnswerOption> </lcAnswerOptionGroup> <lcFeedbackIncorrect>No, look to the East.</lcFeedbackIncorrect> <lcFeedbackCorrect>Yes, look to the East.</lcFeedbackCorrect> </lcTrueFalse>