Sunday, November 15, 2009

Can you give me information about qualitative research versus quantitative?

Thank you! Please answer by March 20 at 1:00

Can you give me information about qualitative research versus quantitative?
Background


Qualitative researchers:





* reject the idea that social sciences (such as education and training) can be studied with the same methods as the natural or physical sciences;


* feel that human behavior is always bound to the context in which it occurs; therefore, behavior must be studied holistically, in context, rather than being manipulated;


* employ an "insider's" perspective; this makes qualitative research an intensely personal and subjective style of research.





Quantitative researchers:





* argues that both the natural and social sciences strive for testable and confirmable theories that explain phenomena by showing how they are derived from theoretical assumptions;


* reduce social reality to variables in the same manner as physical reality;


* attempt to tightly control the variable in question to see how other variables are influenced.





http://edweb.sdsu.edu/Courses/Ed690DR/Cl...





Qualitative analysis: Richness and Precision.


The aim of qualitative analysis is a complete, detailed description. No attempt is made to assign frequencies to the linguistic features which are identified in the data, and rare phenomena receives (or should receive) the same amount of attention as more frequent phenomena. Qualitative analysis allows for fine distinctions to be drawn because it is not necessary to shoehorn the data into a finite number of classifications. Ambiguities, which are inherent in human language, can be recognised in the analysis. For example, the word "red" could be used in a corpus to signify the colour red, or as a political cateogorisation (e.g. socialism or communism). In a qualitative analysis both senses of red in the phrase "the red flag" could be recognised.





The main disadvantage of qualitative approaches to corpus analysis is that their findings can not be extended to wider populations with the same degree of certainty that quantitative analyses can. This is because the findings of the research are not tested to discover whether they are statistically significant or due to chance.





Quantitative analysis: Statistically reliable and generalisable results.


In quantitative research we classify features, count them, and even construct more complex statistical models in an attempt to explain what is observed. Findings can be generalised to a larger population, and direct comparisons can be made between two corpora, so long as valid sampling and significance techniques have been used. Thus, quantitative analysis allows us to discover which phenomena are likely to be genuine reflections of the behaviour of a language or variety, and which are merely chance occurences. The more basic task of just looking at a single language variety allows one to get a precise picture of the frequency and rarity of particular phenomena, and thus their relative normality or abnomrality.





However, the picture of the data which emerges from quantitative analysis is less rich than that obtained from qualitative analysis. For statistical purposes, classifications have to be of the hard-and-fast (so-called "Aristotelian" type). An item either belongs to class x or it doesn't. So in the above example about the phrase "the red flag" we would have to decide whether to classify "red" as "politics" or "colour". As can be seen, many linguistic terms and phenomena do not therefore belong to simple, single categories: rather they are more consistent with the recent notion of "fuzzy sets" as in the red example. Quantatitive analysis is therefore an idealisation of the data in some cases. Also, quantatitve analysis tends to sideline rare occurences. To ensure that certain statistical tests (such as chi-squared) provide reliable results, it is essential that minimum frequencies are obtained - meaning that categories may have to be collapsed into one another resulting in a loss of data richness.


http://bowland-files.lancs.ac.uk/monkey/...





Great chart at this site:


http://www.wilderdom.com/research/Qualit...





Good luck!
Reply:I've heard graduates referring to themselves as being "quants" or "quals".





"Quantitative" refers to the ability to count something and to put a number to it. Quantitative research is based on experimental methods and controls that render statistic data to confirm or to disconfirm a hypothesis.





"Qualitative" research also incorporates hypothesis, but the data is based less on quantitative experimental methods and more on analyzing data to confirm or disconfirm a hypothesis as might be gathered through such "soft" means as literature reviews, surveys, and interviews.





I hope this helps.
Reply:qualitative is not as exact as quantitative. For example, "how fun was that roller coaster?" cannot be answered quantitatively. You can say "a lot" or "so so" but those are not exact amounts. However "which shoes cost more?" can be answered quantitatively because you are dealing with hard numbers.
Reply:I am not sure if this is a school assignment or not, but if I remember correctly qualititative research is based on the quality of the product being researched, and the quantitative research is based on the quantity (amount) of the product being researched. I hope this helps you out and I hope it's NOT an assignment that you SHOULD be doing yourself.

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