STAT6000: Statistics for Public Health

STAT6000_Assessment Brief 2 Page 1 of 3 ASSESSMENT BRIEFSubject Code and Title STAT6000: Statistics for Public HealthAssessment Assessment 2: Assignment – Identifying and InterpretingStatistics in…

STAT6000_Assessment Brief 2 Page 1 of 3

ASSESSMENT BRIEFSubject Code and Title STAT6000: Statistics for Public HealthAssessment Assessment 2: Assignment – Identifying and InterpretingStatistics in Research ArticlesIndividual/Group IndividualLength 2000Learning Outcomes This assessment addresses the following learning outcomes:1. Understand key concepts in statistics and the way inwhich both descriptive and inferential statistics areused to measure, describe and predict health andillness and the effects of interventions.5. Apply key terms and concepts of statistics, including;sampling, hypothesis testing, validity and reliability,statistical significance and effect size.6. Interpret the results of commonly used statistical testspresented in published literature.Submission Due Sunday following the end of Module 4 at 11:55pmAEST/AEDT*Weighting 30%Total Marks 100 marks

*Please Note: This time is Sydney time (AEST or AEDT). Please convert to your own time zone (eg.Adelaide = 11:25pm).STAT6000_Assessment Brief 2 Page 2 of 3Instructions:This assessment requires you to read two articles and answer a series of questions in no more than2000 words.Most public health and wider health science journals report some form of statistics. The ability tounderstand and extract meaning from journal articles, and the ability to critically evaluate thestatistics reported in research papers are fundamental skills in public health.Paper 1: Lam, T., Liang, W., Chikritzhs, T., & Allsop, S. (2014). Alcohol and other drug use at schoolleavers’ celebrations. Journal of Public Health, 36(3), 408-416. Retrieved from:http://jpubhealth.oxfordjournals.org/content/early/2013/08/26/pubmed.fdt087.full.pdf+htmlRead the Lam et. al. (2014) research article and answer the following questions:1. This paper presents two hypotheses. State the null and alternative hypothesis for each one,and describe the independent and dependent variables for each hypothesis.2. What kind of sampling method did they use, and what are the advantages anddisadvantages of recruiting participants in this way?3. What are the demographic characteristics of the people in the sample? Explain by referringto the descriptive statistics reported in the paper.4. What inferential statistics were used to analyse data in this study, and why?5. What is the odds ratio for engaging in unprotected sex (compared with those who engagedin safety strategies with the greatest frequency)? Interpret this by explaining what the oddsratio is telling us, including any variables that were controlled for in the model.6. How representative do you think the sample is of the national population of schoolies?Explain why.Paper 2: Wong, M. C., S., Leung, M. C., M., Tsang, C. S., H., . . . Griffiths, S. M. (2013). The rising tideof diabetes mellitus in a Chinese population: A population-based household survey on 121,895persons. International Journal of Public Health, 58(2), 269-276. Retrieved from:http://dx.doi.org.ezproxy.laureate.net.au/10.1007/s00038-012-0364-yRead the Wong et. al. (2014) paper and answer the following questions:1. Describe the aims of the study. Can either aim be restated in terms of null and alternativehypotheses? Describe these where possible.2. What are the demographic characteristics of the people in the sample? Explain by referring tothe descriptive statistics reported in the paper.3. What inferential statistics were used to analyse data in this paper, and why?4. What did the researchers find when they adjusted the prevalence rates of diabetes for age andsex?5. Interpret the odds ratios for self-reported diabetes diagnosis to explain who is at the greatestrisk of diabetes.6. What impact do the limitations described by the researchers have on the extent to which theresults can be trusted, and why?STAT6000_Assessment Brief 2 Page 3 of 3Resources for Assessment 2• Lam, T., Liang, W., Chikritzhs, T., & Allsop, S. (2014). Alcohol and other drug use at schoolleavers’ celebrations. Journal of Public Health, 36(3), 408-416. doi: 10.1093/pubmed/fdt087.Retrieved from:http://jpubhealth.oxfordjournals.org/content/early/2013/08/26/pubmed.fdt087.full.pdf+html• On Biostatistics and Clinical Trials (2012). Retrieved from:http://onbiostatistics.blogspot.com.au/2012/02/how-to-interpret-odds-ratios-that-are.html• Wong, M. C., S., Leung, M. C., M., Tsang, C. S., H., . . . Griffiths, S. M. (2013). The rising tide ofdiabetes mellitus in a chinese population: A population-based household survey on 121,895 persons.International Journal of Public Health, 58(2), 269-276.http://dx.doi.org.ezproxy.laureate.net.au/10.1007/s00038-012-0364-yAssessment CriteriaKnowledge of sampling methods, and research and statistical concepts 20%Interpretation of research concepts, statistical concepts and reported results, demonstrating appliedknowledge and understanding 40 %Critical analysis of research elements including sampling, results and limitations 30%Academic writing (clarity of expression, correct grammar and punctuation, correct word use) andaccurate use of APA referencing style 10%

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