hnd二手资料的优缺点.docVIP

二手资料的优点 收集过程迅速而简单，成本低，用时少，范围广。 不容易引起竞争对手的注意 通过二手资料可以更好的分析出需要做原始资料调研的问题 二手信息可能暴露潜在的危险，比如数据收集方法不合适，从而导致了一系列后果。对一手资料调研有起到了警惕的作用。 为现有的资料做补充，更深刻的去解释一手数据 6. 二手资料有时可以和一手资料作对比，对一手资料大体上进行确认。 二手资料的缺点 不一定适用，二手资料有时不是为了当前目的而收集的，所以二手资料的相关性和准确性都不高。 二手资料的准确性有时难以保证。有时候原始资料中包含一些错误和偏差，二次分析者对此不了解，可能使结论发生偏差 二手资料很有可能是过时数据 二手资料中可能包含了一些分析者的感情因素，有时会故意隐瞒一些真实数据。 有时无法确定二手资料所用数据的可靠性。 有时二手资料的数据不充分，无法满足当前需求 The advantages of secondary data The 1 collection process is quick and simple, low cost, less time consuming, a wide range of. 2 is not easy to cause competitors for attention 3 through the secondary data can better analyze the need to do original research data problem 4 second-hand information may be exposed to potentially dangerous, such as data collection method is not suitable, leading to a series of consequences. On the one hand research has played a vigilance function. 5 for the existing information added, more profound to explain a hand data 6 second-hand information can sometimes and first hand data for comparison, on the first hand data largely confirm. The disvantages of Secondary data. 1 do not necessarily apply, second-hand information sometimes is not for the purpose of gathering secondary data, so the relevance and accuracy is not high. 2 secondary data accuracy is sometimes difficult to ensure. Sometimes the original data contains some errors and deviations, two analysts do not understand this, may make the conclusion deviation 3 second-hand information is likely to be outdated data 4 secondary data may contain a number of analysts of the emotional factors, will sometimes deliberately conceal some real data. 5 sometimes fail to identify the secondary data to the data reliability. 6 sometimes second-hand information data is not sufficient, is unable to satisfy the present demand