1.Please write the full reference for this journal article using correct APA 6th referencing style.
2.Write a suitable null hypothesis for this study.
3.What was the alternative hypothesis for this study (what did the researchers want to investigate)?
4.Did the authors adequately justify the need for this study? Justify your answer.
5.What are TWO advantages/strengths of this study? Your answer should be in particular reference to the paper you are assigned.
6.What are TWO disadvantages/limitations of this study? Your answer should be in particular reference to the paper you are assigned.
7.In your view, what are the ethical concerns in this particular study?
8.Explain if the authors have taken appropriate measures to address any ethics issues that may be relevant to the study.
9.Please describe the participants and how they recruited into the study.
10.Describe the sampling method that was used to select the participants in the control group.
11.What study design was used and what level of evidence is this study design?
12.Do you think the study design was suitable to achieve the purpose of the study? YES or NO. Justify your answer.
13.Describe one alternative study design that could have been used for this study and describe how you would conduct the study with the alternative study design that you proposed. (3 marks)
14.Using “wireless phones” as independent variable and the “risk of salivary gland tumours” as dependent variable,
Please write a possible Type I statistical error?
Please write a possible Type II statistical error?
15.Based on the data from Table 1, using the “Total, >1 year latency” column only,
draw a labelled 2x2 table using “mobile phone, total” as the exposure group in comparison to the use of “analogue” phone (the reference group) and salivary gland tumour as the outcome. Calculate the Odds Ratio (1 mark - please show your calculations) and interpret the odds ratio that you have calculated in detail.
16.Based on following data from Table 1 which only looks at the latency time of more than 5 – 10 years, please provide interpretation of the odds ratio (OR) , interpretation of the 95% confidence intervals (CI) (4 marks) and whether or not the results are statistically significant and justify . You may choose to provide answers in a section of each phone type.