highly significantp < 10 −6
For the EXP group, student test scores had increased at each stage of testing (post > pretest 2 > pretest 1), and the paired t tests at each stage were highly significant ( p < 10 −6 ).
For the EXP group, student test scores had increased at each stage of testing (post > pretest 2 > pretest 1), and the paired t tests at each stage were highly significant ( p < 10 −6 ).
As seen in Figure 6 , a mild trend exists in the data in which students with low math scores had a greater improvement in their performance if they viewed the demonstration, compared with those who did not view it.