Research question #1: Can texting while driving cause accidents?
Response: The above question represents a cause-effect relationship; hence, a survey research design will be the most appropriate. To answer the question effectively, drivers and passengers act as independent variables and rate of the accident (presented by the number of accidents per month) as the dependent variable. I will use both drivers because they have first-hand information towards major causes of the accident. Additionally, passengers will also form the respondent because they witness the behavior of drivers while in the vehicle. The study will be conducted for a total of eighteen months to ensure the validity and reliability of information corrected. A sample of 20 drivers and 80 passengers will form the respondent. To promote the ethics of the study, all participants will be identified with anonymous names and no participant will be allowed to mention names of any person or vehicle. To address such issues, all participants will be required to sign a contract abiding them to ethical rules any breach of the contract will result into the immediate dismissal of the person.
Research question #2: Are the numbers of hours a student studies associated with their final grade?
Response: The above question aims at testing a certain phenomenon, which makes an experiment design the most appropriate to provide appropriate answers. In the experiment design, the independent variable will be the number of hours the student studies. The question seeks to investigate what determines performance in a class, and the tested variable is the number of hours studied. On the other hand, the dependent variable will be the final grade of the student. According to the study, the question hypothesis that the final grade of the student depends on the number of hours studied. A total of 200 students will participate in the study that involves filling out questionnaires. The ethical concerns of the study will be observed by ensuring participants do not write their real names on questionnaires.