“Investigators wishes to know if eating dark chocolate is associated with better cholesterol level in the...

“Investigators wishes to know if eating dark chocolate is associated with better cholesterol level in the blood among middle -aged people 45-65 years)”

‘Propose an epidemiological study design to explore this question and justify why you chose this design? ‘[4 Marks]

‘Assuming you are one of the investigators – please provide a short description about the participants in the study, what data you will need to collect to answer your research question and at which time point you collect this data’ [4 Marks]

What other study design you can consider for this research question and explain why you chose it [4 Marks]

Solutions

Expert Solution

a. Experimental study design would be a better choice.

Problem statement would be " A true experimental study to assess the effectiveness of dark chocolates on reduceing blood cholestrol levels among people aged between 45-65 years.

True experimental studies have greater value in order to find the effectiveness of a particular intervention on a clinical parameter. It is the most trusted and strong research deisgn. Randamization, control and manipulation could be applied.Experimental and control group will be at same setting.

Participants details

Participants would be aged 45 to 65 years
willing to participate in the study
having a blood cholestrol level higher than normal

Data required to start study

past medical history
blood laboratory investigations of lipid profile
medications used by the patient

Time to start the study after these requirements are met

Determination of sample size
Institutional review board agreement
tool validation
proposal presentation

Other study designs would be quasi experimental design in which control and manipulation could be applied.Here, the study will not use randomization. Experimental and control group will be at different settings.

Nightingale answered 1 year ago

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