Study Design

Content:
 Dr. Petiti's class on Reaserch Methods was another very useful and  insightful  lecture. This time she discussed about experimental studies and also introduced the measurements that are used for experimental validity like the odds  ratio, hazard ratio and risk  ratio. She mentioned a very good point that the basic step towards desinging a study is to understand the types of study desingns and know about the factors and biasness that can influence the study. She ta lked about study of  occurence of breast cancer with people taught about  BSE  and how sample size is very important factor in a study and how can a small sample size can get to a wrong conjecture.In another study of Coronary Heart Disease with drinking or non-drinking the experimental validity measurements were considered like the risk ratio and how the occurence of risk ratio of one event can be the  inverse of risk ratio of occurence of another event.In the study of occurence of cancer in people using cellphones she told about the factors which could bring a change in  the final outcome of results like the time taken to develope cancer and also the technological advancements during that time which could make the whole study unimportant. I would like to thank Nate and Sheetal for providing link to the articles. They are really good .

Posted by
Ashutosh Singraur