deletions | additions       diff --git a/Additionally_The_researchers_used_a__.tex b/Additionally_The_researchers_used_a__.tex  index 800b48d..896302c 100644  --- a/Additionally_The_researchers_used_a__.tex  +++ b/Additionally_The_researchers_used_a__.tex 
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Additionally,The researchers used  a questionnaireas a research instrument. The questionnaire  made solely by the researchers will serve as the research instrument in this study. It will  be given to the users before the presentation of the prototype to determine their existing knowledge on the domain of the study. Also, the same questionnaire will be given to them to assess their learning after the presentation. The questionnaire that will be given to the users will be based on the researchers knowledge on their related studies as well as from the consultations and final evaluation of the thesis adviser. A set of 10 questions with corresponding values of 1 to 5 with 5 being strongly agreed were made. By using this type of preferences in answering the questionnaire, the researchers can easily determined the learning changes of each user. The overall mean will be computed for each user's before and after questionnaire. The mean will be computed as follows: \\