Research Methods Problem - not stats (epidemiology)

1) Were the exposed and non-exposed study groups comparable with respect to other important determinants of the outcome? If not, did the researchers “adjust” for the outcome? 2) Was the outcome assessed while blind to the exposure status? See attached file for full problem description.

Research and statistical processes in relation to performance improvement

How are research and statistical processes important to an organization in relation to performance improvement? How does an organization utilize internal data in making decisions and why is this important?

Research Methods in Epidemiology

I need to discuss the impact of each study limitation in this paper on the study results. I primarily need to identify the major weaknesses in the study not acknowledged by the authors and then discuss.

Intro to random sampling question

I have been given a data set with the heights (in cm) of 200 Mexican children ages 2- 10 years. Each child has an ID number at the column to the left. For the purposes of this assignment, I will think of the 200 children as being a population of children from some town in Mexico. I will need to estimate the average (mean) height of the 200 children based on two random samples. Your instructions as an EXAMPLE only: 1) With your eyes closed, place your pen somewhere in the random numbers table. Before, you start, you should decide if you will move up, down left, or right through the table. 2) Using the random numbers in order from your start point, select 5 children’s ID numbers at r... click for more

Impact of each study limitation

I need to discuss the impact of each study limitation in this paper on the study results. I need to identify the major weaknesses in the study *not* acknowledged by the authors and then discuss *why* it weakens the study.