A meta analysis takes into consideration five studies each of which is aimed at finding out the relation between a novel drug and upper gastro intestinal bleeding. The relative risk of getting an upper gastrointestinal bleed matched to a control population is recorded by each study. Which among the following studies provides the most compelling evidence that the bleeding is not caused by the new drug?
A new drug treatment has been developed for Crohn’s disease. The pharmaceutical company behind this, is planning to conduct a trial and is looking for hiring around 200 individuals that are suffering from Crohn’s disease. The aim would be to determine if there is any decline in the disease activity in response to the drug and compare it with a placebo. What phase is the trial in?
In reference to confounding variables, which among the given is not true?
In order to determine if there is any correlation among systolic blood pressure and the age of a person. Which among the provided options is false regarding the calculation of correlation coefficient, r ?
Heights of 100 individuals(adults) who were administered steroids at any stage during childhood was studied. The mean height was found to be 169cm with the data having a standard deviation of 16cm. What will be the standard error associated with the mean?
What is the primary purpose of funnel plots?
During the analysis phase, which of the provided options serves to control confounding factors?
Standard error of the mean can be defined as:
Considering research studies, which of the following is considered as a limitation of the Delphi method?
A survey aimed at finding out mean glucose level in individuals that took antipsychotics medicines was conducted. The results were as follows: Mean Value: 7mmol/L, Standard Deviation: 6mmol/L, Sample Size: 9, Standard Error: 2mmol/L. For a confidence interval of 95%, which of the option presents the correct range up to the nearest value?