Check Answer is a button that appears below the Question - clicking on it lets the student check if they have answered a Question correctly. It provides instant feedback and is usually only used for formative assessments. Take a look at our demo test.
Check Answer is configurable on a per question basis. Feedback attempts are unlimited by default, but can be configured to allow the student to check answers as many times as needed.
The Check Answer function will not disclose the correct answer, but will indicate which questions have been answered correctly and incorrectly - as shown in Figure 1.
Figure 1 - A question example with Check Answer.