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.Know More
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.Learn more about Environmental Science
Advantages of e-recruiting include fewer costs, reduced time recruiting, access to better talent and increased flexibility. Some disadvantages to e-recruiting include limited information and no interaction with candidates. Many businesses are incorporating e-recruiting into their human resource plans because of the many benefits.Full Answer >
Advantages of plastic include use in the building and construction industry, packaging, transportation, electronics and recycling. Disadvantages of plastic include durability, environmental harm, chemical risk and choking hazard.Full Answer >
Advantages of the Association of Southeast Asian Nations include the elimination of tariffs between member states, which has reduced product prices due to increased competition within the market, and possible investment opportunities in the market. Among the disadvantages of ASEAN are the risk of an influx of cheap imports flooding local markets and the existence of poor governance structures in some member countries.Full Answer >
Advantages of boxing include stress relief and an improved self-image, while the main disadvantage is a potentially higher risk of brain damage. It is thought that heavy blows inflicted upon the head and brain could be a precursor to certain diseases.Full Answer >