I'm researching obesity and its effect on CVD I have selected 6 primary resources I have gone through all the research but I do not understand how to apply Explain the research philosophy here the assignment question please assist me (4. Drawing upon appropriate literature, please compare and contrast the methodologies of the identified studies. Try to identify what the strengths and/or limitations of each study are and how they may affect our confidence in the findings. You may wish to consider the basic study design, sampling strategy, sample size, data collection procedures, statistical methods, or other confounding influences. You must demonstrate criticality in your analysis (approx. 500 words. 20% of overall mark).