As a result, they were encouraged to gain higher scores when they practiced later.
She also added that it was possibly because the tests were more difficult than the
exercises, so students were likely to achieve lower scores than they did in the exercises.
Similarly, in the latter study, Kongpet Dennis stated in her research that the students
gained higher scores in the exercises than the tests possibly because they could repeat
the exercises at teacher discretion, but they could do the tests only once.