deletions | additions       diff --git a/Additionally_a_questionnaire_based_from__.tex b/Additionally_a_questionnaire_based_from__.tex  index 5c51d2b..679cfa7 100644  --- a/Additionally_a_questionnaire_based_from__.tex  +++ b/Additionally_a_questionnaire_based_from__.tex 
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Additionally, a questionnaire based from the study of \citet{olufemi2012assessing} will serve served  as the research instrument in this study. It will be was  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 was  given to them to assess their learning after the presentation. The questionnairethat will be  given to the users will be was  based on the researchers 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 1 being strongly disagree and  5 being strongly agreed agree  were made. By using this type of preferences in answering the questionnaire, the researcherscan  easily determined the learning changes of each user. The overall mean will be was  computed for each user's user  before and after answering the  questionnaire. The mean will be computed as follows: \\