What are the advantages and disadvantages of systematic sampling?

Answer

Advantages of systematic sampling ensure even coverage of an area and simplicity. Disadvantages include bias and risk of patterns or under-representation. Systematic sampling is useful for many types of research, including any research types that require looking at individuals, such as human, plant or animal research.

Systematic research basically means picking a percentage of the population to sample, then coming up with a concrete way of choosing that percentage, such as every 10th individual. This is simple method of sampling, making it a good choice for basic research, new researchers or the first steps of more complicated research. When done correctly, this research style provides even area coverage, so theoretically the resulting samples are an accurate representation of the population.

However, with random sampling, it is always possible that the random individuals will not be an accurate representation of the whole population. For example, if every fifth house has four bedrooms, but all the ones in between have two, sampling every fifth house for bedroom number gives a biased result that does not represent the real population. This kind of accidental pattern or bias is a risky disadvantage of systematic sampling, and anyone who samples in this way has to come up with measures to counteract this inaccuracy.

Q&A Related to "What are the advantages and disadvantages of..."
It can interact with a hidden periodic trait within a population hence the technique will be compromised since there will not be random and representativeness of the saple.
http://wiki.answers.com/Q/What_are_advantages_and_...
The main disadvantage of purposive sampling is that the vast array of inferential statistical procedures are then invalid. Inferential statistics lets you generalize from a particular
http://www.ehow.com/info_8504180_advantages-disadv...
Here, trawl through this.. http://en.wikipedia.org/wiki/Systematic_…
http://uk.answers.yahoo.com/question/index?qid=201...
I'm assuming PE means it's about sports. Advantages: There is a blue-print for suited build, so measuring will identify 80% of talent, target training those kids will make them maximize
http://answers.yahoo.com/question/index?qid=201309...
1 Additional Answer
Ask.com Answer for: advantage and disadvantage on systematic sampling
Advantages & Disadvantages of Systematic Sampling
With statistics, people can make informed decisions. If a survey finds a percentage of workers in one industry receive an injury, young workers might factor that in when choosing a career. Sampling populations, in which researchers randomly select... More »
Difficulty: Easy
Source: www.ehow.com
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com