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  3. 1 introduction in this assignment you are required to read...

Question: 1 introduction in this assignment you are required to read...

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1 Introduction In this assignment you are required to read and understand the accompanying 9-page paper, “Driver performance while text messaging using handheld and in-vehicle systems” (Owens et al., 2011). Afterwards, answer the following questions: 1. (3 Marks) Identify the main research question addressed by the authors. This should be expressed in a paragraph of about 7 sentences. 2. (3 Marks) What are the main approaches other researchers have previously used to address the problem? 3. (3 Marks) What approach is being proposed by the authors of this paper? Why are the previous approaches different from what is being proposed in this paper? Specifically identify the problem faced by previous approaches. 4. (3 Marks) Summarize/state the description (demographic) of the participants used in this study, how they were selected and payments received. Comment on any item that may have caught your attention with regard to generalizing the results obtained in this study. 5. (3 Marks) The authors have used a factorial design in their study. Justify their choice. How else could they have constructed the study and what will be the potential benefit or otherwise of the approach you have suggested? 6. (4 Marks) In the study carried out in this paper, what are the dependent variables? Explain in your own words why the choice of these dependent variables are appropriate for the research question. 7. (12 Marks) Factorial design entails a decision on the factors to be considered (i.e. independent variables). In this study what are the factors? What are the various conceptual questions the choice of these factors allow the researchers to answer? Explain each of your conceptual questions and how it relates to the main research question. Draw a diagram/table showing the factorial design along with the factors. 8. (15 Marks) Explain in detail how the data collected by the researchers would be combined to determine the main effects. In determining the main effects how would you state the hypothesis tests (both null and alternate)? What test would be conducted? What are the first order interactions? Using the material provided in the paper, what are their implications? 1 9. (6 Marks) Comment on the internal and external validities of the study reported in this paper. How would you strengthen the internal and external validities if necessary? You may base your response on material from the paper. Any “copying and pasting” from the paper or any other source will receive a zero mark. Write your response in your own words.

It is an assignment of research methodology 

From the research paper, you have read and answer the above questions 

I am writing the topic of research paper "Accident Analysis and Prevention 43 (2011) 939–947 Contents lists available at ScienceDirect Accident Analysis and Prevention journal homepage: www.elsevier.com/locate/aap Driver performance while text messaging using handheld and in-vehicle systems Justin M. Owens ∗, Shane B. McLaughlin, Jeremy Sudweeks Virginia Tech Transportation Institute, 3500 Transportation Research Plaza, Blacksburg, VA 24061, USA"

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