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Coursework of Qualitative and Ouantitative Research - Essay Example

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Coursework of Qualitative and Ouantitative Research

(selecting respondents to match certain criteria, e.g. socio-

emographic) the more cost-effective, and still reliable. While it

may seem most cost-effective to buy in a mailing list (which may

be sold as a "sample"), it is highly likely that the poor quality of

the list, and the resultant low response rate will produce highly

misleading and unreliable results.

A larger sample is better than a smaller one, but not in direct

proportion; for example, for the analysis to be twice as good, a

sample needs to be four times as large, and to be three times as

good, nine times as large. A professional agency will be able to

advise on the way to achieve the best balance between quality,

quantity and cost in sampling to produce reliable findings.

Quantitative Data Collection

Different methods are used to go ahead with a quantitative research

including telephone, postal , on-line and face-to-face methods . In

addition, observation studies are growing in

popularity. Each has its pros and cons, depending on the time and

budget constraints and objectives of the research. For example,

postal surveys or self completion surveys are likely to be

recommended only in certain circumstances.

Quantitative Question-Design

Very distinct skills are required to undertake qualitative or

quantitative research effectively. Researchers have to be able to

design questions which are clear, consistently interpreted, widely

understood, unambiguous, meaningful, relevant and tightly defined

a more difficult task than it may appear to outsiders. In addition,

the full questionnaire must be capable of extracting rich and

relevant information which will help managers to make more

effective...
Therefore , the need is for smaller but focused samples rather than large random samples , which qualitative research categorizes data into patterns as the primary basis for organising and reporting results.
4."It certainly seems reasonable to suggest that one may have a better understanding of a community member's situation by reading a descriptive passage than just looking at demographic statistics"(Kruger,2003) ...Show more
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Summary

Experiment is a typical quantitative research method that aims to provide a better understanding of the relationship between a causal hypothesis and a specific phenomenon which represents either theoretical or practical interest for the researcher. True experimental study design or random experimental design is the preferred method in quantitative research, especially in evaluation studies for it is the best option to ensure as great amount of control as possible and thus allow close examination of causal relationship(Kaplan,2004)
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