Friday, September 19, 2014

A500.6.3.RB_MedleyKim_Qualitative and Quantitative: The Difference is More

          Marie C. Hoepfl (1997) takes great care to explore the world of qualitative research and provides us with a better appreciation for the benefits of this type of research. A simple glance of the words used to describe the two methodologies of study, qualitative and quantitative, shows the fourth letter of each, “l” and “n”, are separated by the letter “m”, as in more. Hoepfl (1997) sites the calls from others for more, to expand, to go beyond the primary method of research, which is quantitative. Although there are many benefits to be gained by adopting this style; many scholars are unaware of its processes. As Zuga (1994) notes, of the 220 reports, only sixteen investigate qualitative methodologies (as cited in Hoepfl, 1997). It’s that age old adage, quality versus quantity, and which is the better choice?
          Qualitative research relies upon a “naturalistic approach that seeks to understand phenomena in context-specific settings” (Hoepfl, 1997). Whereas quantitative research establishes a hypothesis, conducts controlled experiments, records the findings, analyzes the numbers, and makes a conclusion based on statistical information, qualitative research provides for the consideration those interactions that occur in a social setting, and their effects. What happens when the human element is added?
          To demonstrate the quantitative approach, imagine a scientist wishes to test the effect of mountain water on human skin. The scientist would develop a hypothesis, such as; the external temperature of the skin will decrease when cold mountain water is applied. Random sampling, in order to develop adequate representation of a larger population, like college students, would be conducted. In a controlled setting, perhaps the Biology lab on campus, participants would be advised of the experiment to be conducted. The external temperature of each applicant’s skin would be recorded. Let’s say for illustrative purposes, the test area is that of the right and left forearm. Assistants would use an instrument to take the temperature of each forearm and the results would be recorded. Cold water, with a degree of coldness designed to represent mountain water, would then be applied to the test area. Post-application heat levels would be recorded. Once all experimentation had been completed, the results would then be analyzed using statistical formulas. Comparison of the results would be made and from the numerical data, a conclusion would be reached. Now, let’s apply qualitative methods to the same topic.
          Suppose the effects of cold, mountain water on the human skin were to be tested by a qualitative researcher. Hoepfl (1997) identifies “maximum variation sampling” as the method most helpful for this style. A group of children and adults are selected for observational study. The setting, instead of a lab, is an area of a mountain stream used as a swimming hole. So as to avoid any “distortion of the natural scene”, the researcher, who is the observer for the experiment, should either plan to be a part of the experiment, or a passive observer (Hoepfl, 1997). This could be achieved with the placement of hidden cameras, like the ones used by naturalists to capture animals in their natural habitat. With cameras in place, the natural actions of the group are recorded in order to see the effects of cold, mountain water on the human skin as each member enters the water. First, how does each person get in the water? Does one dip their toe first, to test the coldness, while another grabs the end of a rope swing and yells “cowabunga” before letting go? In addition to noting physiological changes, for example, goose bumps, blue lips, and the chilling effect described by George Costanza of Seinfeld as shrinkage; the qualitative researcher would record facial expressions and other gestures that occur as a result of the subject being introduced to cold, mountain water. If the experiment takes place on a hot, sunny day, the expressions and gestures may indicate the coldness is welcomed. If the day is overcast, or possibly snowing, as is the situation when the Polar Bear clubs take their annual plunge, shivers and chattering teeth may be the overarching notes of the day.

          So why use qualitative research? Rather than rely on conclusions reached by using theories and numerical data, qualitative research provides its audience with credibility, dependability, and confirmability, that can not only be seen; but, can be imagined as the reader reads the researchers recounts. Qualitative provides for that element of surprise as a result of social interaction. Data may lead scholars to believe humans would likely avoid exposure to water once it reaches forty degrees. Qualitative shows how wrong this conclusion is. Imagine teaching the mathematical principle of fractions to a child. What if the naturalistic approach were applied as opposed to the numbers method? Without knowing, the qualitative approach provided me with the opportunity to better explain fractions to my oldest son. I used cooking to demonstrate fractions. Recipes often instruct its readers to use a quarter teaspoon of this, or a three-quarter cup of this. In order to either reduce or increase a recipe, fractions have to be understood. By showing how fractions are used in a social setting, he understood the principle better. The qualitative experience provided him with a deeper understanding of the issue. Today, he works as a chef in St. Augustine.  Numbers in a table, more often than not, dampen my inner curiosity; however, when those numbers are few, and the experiment comes to life, either through recorded evidence or through imagery, I gain a much deeper and broader understanding of and appreciation for the topic being presented. 

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