Road Safety Advertising

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Population and sampling

Population of the study is all types of road users in the western province that is because each individual in the western province comes under some category of road users. According to the department of census and statistics the entire population in the western province is 5865 000 (Registrar General's Department, 2010), most valid and reliable data would come from every member of the population this is very hard to achieve it is costly and time consuming (10 Step Guide to Sampling by RCU, 2010), for those reasons research team choose not to use a census therefore a sample of the population was selected to perform the focus group survey and the questionnaire.

Questionnaire

Sample

The term sampling frame describes a numbered list of the population of interest that is used to draw the sample in a survey. It is used to select the individual who will be interviewed. The sample frame for the study is comprised of all key people of different types of road users (motorists, passengers, pedestrians, truck drivers, cyclists etc.) demographic and police crash database was made use of when developing the sample frame.

The results of the survey would be different if we used the whole western province to implement the survey so this made the representative sample important; therefore the sample was selected in proportion to the entire population .Colombo district holds the highest Percentage which is 43% of the total population so they were given 85 questionnaires, likewise the sample was selected

Stratified random sampling was the best suited sampling method as all types of road user groups can effortlessly be identified in the population. The population of interest that is all stakeholder groups were categor...

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...dents (road users) of the western province during a period of one week. It was a main form of primary data gathering to the study because our end product of the research is also to enhance awareness on the road.

Focus group study was carried out to find a specific objective of the research, which was to find out elements that should be incorporated in a good road safety advertisement. It was conducted with 50 participants varying from age gender and usage of the road.

And, finally the research team was able to conduct a study on public awareness by observation.

Works Cited

10 Step Guide to Sampling by RCU. (2010). [online]. From YouTube last accessed 20 september2011 at: http://www.youtube.com/watch?v=sb8cUvysc9A

Martyn Shuttleworth(2009). RESEARCH BIAS [online]. Last accessed 20 september 2011 at: http://www.experiment-resources.com/research-bias.html

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