Interviewer instructions
Based on the respondent's knowledge on RDTs after that explanation, this question is trying to find out whether it is true or not that RDTs are devices which can be used to test if a person has malaria. The true or false questions are trying to test the respondent's understanding of RDTs, if he/she understands the remaining questions will be easy to administer because both the interviewer and the respondent would know what they are talking about.