3) Use Frequency of WBT Teaching Materials
Either class of HTML and C language also divided into a group with a lot of WBT use frequencies and few groups. We calculated the recurrence accomplishment value of each group. Table 2 is a result of the HTML class. Table 3 is a result of the C language class. As a result of T test, the class of HTML was significant (significance level 1%). The education effects improve to the subjects that use a lot of WBT teaching materials more than the deflection score. The class of C language understands the same thing from T=5.3%.