Question

All study designs should be given an example by yourself.

Use the following diagram of information to help fill out the following charts for each study design. For each study approach, propose a study question. Based on that question, define the methods used and populations. Study Approach Study Question Study Method Target Population Source Population Sample Population Study Population Cross-sectional Surve Study Approach Case Control Study Study Question Study Method Target Population Source Population Sample Population Study Population

Answer 1

Cross sectional study:

Study Question: A cross sectional study of material smoking as risk factor for infant colic

Study method: a research method in which data are collected from groups of participants of different ages and compared so that conclusion can be drawn about differences due to age these type studies are less expensive and less time consuming

Target population:  1. Exposed population 2. Non exposed population

Source of population:  Conducting questionaries’ for different groups of peoples and previous medical records

Sample population: material smoking as risk factor for infant colic, we need select the cases those who are exposed to material smoking and any other chronic conditions are presented for the patient

Ex: 2-5 peoples

Study population: 10-30 peoples

Case Control study: Depression and vegetable eating

Study method :  Observing the peoples those who are have depression with underlying disease or stress and those who are depression free monitoring daily activities

Target population:  30- 60 peoples in disease and non-disease patient with past exposure and out come

Sample population: 5-10  

Study population: 60 - 90 people A significant correlation between foate levels and depression now analysis of work pressure and family tensions alcohol or drugs consumption