3. Teachers should study the principles and teaching methodology related to communicative activities clearly if they want to be more successful. It can be a failure if teachers do not know how to use communicative activities correctly. For example, communicative activities should be used in a small class, and teachers should use the medium language accurately and fluently. In addition, teachers should follow certain steps strictly: presentation, practice, and communicate.
4. The researcher should compare the students’opinion both before and after the experiment. This is to provide sufficient evidence of how the communicative activities can change students’opinion at two points of time.
5. There should be more than one rater to observe the students’ speaking ability and behavior in order to get the
most accurate data.To avoid bias and to cross-check the result of any experiment or research, the more raters there are, the better and more reliable the research becomes.