Writen by Tiyamike Kathewera
Introduction
For quite a long time researchers have been drawn to choose between two methods of conducting research which are qualitative and quantitative. These two methods denote divergent ways in which different researchers collect their data.
Research methods are techniques of gathering data and are generally dichotomised into being either quantitative or qualitative. Quantitative research on one hand is research involving the use of structured questions where the response options have been predetermined and a large number of respondents is involved. Measurement of results in this research method is supposed be objective and statistically valid. In simpler terms quantitative research method is about numbers, objectivity and hard data.
The sample size for a quantitative survey is determined by using scientific formulas to establish the size f a sample that will be needed from a given population. This is done in order to achieve findings with a competent degree of accuracy.2
Qualitative Research on the other hand is research method that involves collection, analysis, and interpretation of data by means of close observation of what people under study are doing and saying. Qualitative research refers to the meanings, concepts, definitions, characteristics, metaphors, symbols, and descriptions of things.3
The researcher is much more involved in the research process. For example, the researcher is part and parcel of a focus group discussion when the method of collecting the data is that one. There is constant interaction between the researcher and respondents. The researcher can also be part of a community which is under study so as to have first hand observation of the respondents. Owing to this fact, there is much more subjectivity on the part of the researcher in qualitative research unlike in quantitative research. Qualitative researchers also have the luxury of diverse ways of gathering collecting their information which will be discussed later on in this paper.
This paper seeks to explore philosophies and methods of collecting information underlying these two research methods with regards to Andrew Bryman’s notion that “increasingly, the terms ‘quantitative research’ and ‘qualitative research’ come to signify much more than ways of gathering data; they come to denote divergent assumptions about the nature and purpose of research in social sciences” (Bryman 1983).
The first part of the essay will try to explore and explain methods of collecting data in qualitative research method as well as those in the quantitative tradition. The second part of the discussion will involve exploration of philosophies behind the two methods with specific examples used to clarify points.
3 http://uk.geocities.com/balihar_sanghera/ipsrmehrigiulqualitativequantitativeresearch.html
The conclusion of the paper will give the author’s own stand and opinion over Bryman’s notion. It will clarify the author’s own stand on the two methods and the preferred tradition in an event of a research.
Some methods of data collection in qualitative research
There are different ways of gathering information when using qualitative method. One of the ways in which qualitative researchers collect information is through focus groups. The focus group generally tries to understand and/or explain people’s behaviour. The ideal number of people in a focus group is in most cases in the region of 6-12. This group is considered small enough to control and big enough to generate as much desired responses as possible.
Participants are usually asked to respond to general and/or specific questions. The interviewer’s main job in this type is to probe and explore the interviewees’ responses. The responses are used to identify the respondents’ perceptions, feelings and opinions on a topic under study. The main aim of this is to determine the degree to which the respondents agree on the topic. Qualitative research in this respect will highly depend on the skills and experience of the interviewer in bringing out the respondents out of their shell.
One most important thing under the focus group is that the respondents should posses similar characteristics and qualities. This provides coherence of answers with regards to the topic under study. For example, a researcher might decide to use university students who regularly read newspapers in their school library to establish what paper the students prefer over a wide range of available papers. In this case the respondents are homogeneous.
Another important thing under the focus group is that questions are usually predetermined and the order in which they are asked is also already set by the researcher. This however does not mean that the method uses a structured pattern. On most occasions the format is unstructured and in some cases semi structured. Owing to this fact the researcher often times is exposed to some responses that he/she did not expect.
Focus groups have an advantage of cutting costs because a group of people is interviewed on a particular topic on a single go than having to interview 12 people individually on different occasions. This as well is saves time of the researcher.
One notable disadvantage with focus groups is that most of the times group discussions are dominated by some few individuals. Others might also feel shy to speak in a group of people thereby giving the researcher less accurate results. For example, a mere village member might not express his thoughts in a village focus group discussion because his village chief, whom he has much respect for, is also in attendance of the discussion.
Closely related to focus group discussions is personal interview. This is another method of data collection in qualitative research. Personal interviews normally use a small sample size. The aim is to solicit views from specific respondents. The researcher has the comfort of extensive observation of nonverbal communication because only two people, the interviewer and interviewee, are involved.
Despite having each person asked questions separately, the questions administered to all the respondents are the same.
In in-depth interviews it is important that the researcher establishes rapport with the respondents so that he should extract as much information as possible even on topics that might initially be presumed sensitive or embarrassing. Achievement of this rapport will give much detail to the research and this is one of the many advantages of personal interviews.
Appearance of the interviewer as in the way he looks and dresses might be a disadvantage as this might intimidate respondents. When this happens the respondents might give inaccurate information in order to match with their preconceived perception of the interviewer. For example, people in a village might think very highly of a well and decently dressed interviewer emanating form a car to the point that they can consequently be forced to alter their responses in order to please the researcher.
Case study is also another qualitative research method. Wimmer and Dominick define a case study as a method that uses many data sources as possible to systematically investigate individuals, groups, organisations, or events. They are conducted when a researcher is trying to understand or explain a phenomenon. Case studies use different past and sometimes examples to establish a current phenomenon. For example, a researcher in Malawi might use Zain, Malawi as a case study, on their handling of the tragedy that befell them when their Blantyre offices were gutted down by fire to explain the role of public relations in organisations. The researcher will then use available information on how the company handled the crisis to determine the role public relations plays in organisations.
Case studies have an advantage of providing rich information to researchers. This is so because there are a lot of situations that the researcher makes use of in the research process.The richness in detail can be a springboard to further research.
One notable disadvantage of case studies is that they are time consuming. Often times case studies produce an enormous amount of information and it is also time consuming for the researcher to go through all the data before him in order to make representative conclusions.
Methods of data collection in quantitative research
The most common and notable method of data collection in quantitative research is through the use of experiments. An experiment is a procedure or operation carried out under controlled conditions in order to discover an unknown effect or law, to test or establish a hypothesis.
A hypothesis is a tentative assumption made in order to draw out and test an existing body of knowledge or a yet to be established body of knowledge.
With an experiment a researcher tries to learn new things about the world, an explanation of why something happens. The experiment must maintain internal and external validity or else the results will not be representative. Researchers are supposed to follow all scientific methods when conducting a research. Quantitative researchers ensure that their hypotheses are valid and testable.
The earliest stage of an experiment involves identification of a hypothesis and making predictions. After a hypothesis is formulated the research is preoccupied with identifying a sample size. This is the population that will be used for the research purpose.
After a sample size is chosen the researcher divides that population into a control group and a test group. A control group is a population that enables researchers to observe differences with the main population under study. The population under study is the test group. Choice of members in each group is supposed to be scientific to reduce chances of experimental error or bias.
The researcher should also establish the time scale and frequency of sampling. For example, a researcher trying to establish the changes that happen in swine flu patients will need to take frequent samples over a considerable amount of time.
After all the above have been done the experiment takes course. The independent variable, that variable whose happening or non-happening does not depend on another, is manipulated to observe changes in the dependent variable. Whatever is gathered during the experiment is then analysed through statistical means.
Another method of collecting information is through telephone surveys. The researcher identifies respondents in a telephone directory, for example. Choice of which people to involve results from statistical means, for example, random sampling. The questioning in the survey is static and standard. The researcher asks the respondents the same questions.
The above method follows the same pattern as internet and mail surveys. The choice of respondents therefore is also similar.
Philosophies behind qualitative research
Qualitative researchers are primarily concerned with understanding how people create meaning and interpret events that surround them (Wimmer & Dominick). In other words, qualitative research is very much harmonious with philosophy of knowledge which is known as epistemology. Epistemology assumes a separation between knowing and being.
Qualitative researchers also have an understanding of what constitutes knowledge. They argue that there are multiple realities and that each person constructs his/ her own reality or perception.5 . This is termed as constructivism. This can best be described using the example of God. Qualitative researchers will agree that everybody who believes in God will have his/her own perception of who God really is. The idea is not fixed therefore one’s own thought of God is definitely different from that of another person’s.
Qualitative research also believes that human behaviour is very much influenced by its setting. Physical setting is of much importance in the qualitative research process. This is so because people are affected by their norms, culture, schedules and traditions among other things. Subjects in qualitative research can therefore not be studied outside the context and setting in which they exist. In short, one cannot understand human behaviour outside the framework in which subjects interpret their thoughts, feelings and actions. 6
It is the belief of qualitative researchers also that the beginning of the research method starts with choice of a topic or area of study and identification of plans of generating and analysing data. They believe that successful identification of a topic coupled with a well planned research procedure helps a lot in the completion of a qualitative research study. Sometimes the research process may emerge as the researcher gains more knowledge from reviewing the literature, consulting experts, or beginning data collection.
After the research process is over, qualitative researchers believe that the write up of such should be more descriptive than abstract. This is made possible by the fact that this type of research uses words more than it does numbers. There is a detailed explanation of findings in qualitative research.
Philosophies in quantitative research
Quantitative research belongs to a positivist tradition which believes that the social world can and should be researched in the same way as natural science. This denotes applying natural scientific ways in the exploration and interpretation of the social world. Natural science is concerned with predicting the future, for example how climate change will affect future generations; controlling the future, for example, how climate change can be reduced in the next ten years; and explaining causes and effects of particular phenomenon, for example, what causes climate change and what are the effects.
Quantitative researchers believe that there is only one reality and that that reality exists outside the knower. In other words the knower and the known are independent of each other. Reality in quantitative research is concrete. Quantitative researchers believe that reality is only comprehensible through human senses. This, in other words, means that reality can only be known through one or a combination of humans’ five senses of smell, touch, hearing sight and taste. Such a proposition automatically rules out speculation as a means of comprehending reality.
Quantitative researchers advance that the relationship between the knower, researcher, and the to be known, researched, should be characterised by objectivity, thus in one way the researcher should not be an integral part of the research. Objectivity is achieved in one way by generating a hypothesis that can be tested to be either true or not.
This type of research depends on finding out what other people have already done and you consequently follow laws and theories that best inform your choice of study. It goes without saying therefore that quantitative research is concerned with confirming or rejecting a theory of theories.
Conclusion
Looking critically at the two research traditions, it appears that quantitative research generates reliable population based on generalisable data. It goes without saying that quantitative research is well suited for establishing cause and effect relationships between phenomena.
Quantitative research also sees the researcher ideally as an objective observer who neither participates in nor influences what is being studied. There is also more usage of statistics and mathematics in quantitative research.
On the contrary, qualitative research makes use of words more than it does numbers. In short qualitative research generates rich, detailed and valid data that contributes to in-depth understanding of a context.
The choice of which method to use will definitely depend on the type of the nature of the project at hand. The author therefore wholly agrees with Bryman that “increasingly, the terms ‘quantitative research’ and ‘qualitative research’ come to signify much more than ways of gathering data; they come to denote divergent assumptions about the nature and purpose of research in social sciences.”
References:
Author unknown. “The Assumptions of Qualitative Designs.” Available: http://www.gifted.uconn.edu/siegle/research/Qualitative/qualquan.htm. Accessed: 29/04/2009
Author Unknown. “Qualitative and quantitative research.” Available: http://uk.geocities.com/balihar_sanghera/ipsrmehrigiulqualitativequantitativeresearch.html. Accessed: 27/04/2009
Barnes J. et al (2005). “The qualitative versus quantitative debate.” Available: http://writing.colostate.edu/guides/research/gentrans/po2f.cfm. Accessed: 27/04/2009
Bryman, A. (1988). “Quantity and quality in social research.” London:Unwin
Creswell, J. W. (1994). “Research design: Qualitative & quantitative approaches.” Thousand Oaks, CA: Sage Publications.
Dominick, J. and Wimmer, R. (2006). “Mass media research: an introduction.” Belmont: California
Glesne, C., & Peshkin, A. (1992). “Becoming qualitative researchers: An introduction.” White Plains, NY: Longman
Merriam Webster online dictionary (2009). Available: http://www.Merriam-webster.com/. Accessed:19/05/2009
Neill J. “Qualitative versus Quantitative Research: Key Points in a Classic Debate.” Available:http://wilderdom.com/research/QualitativeVersusQuantitativeResearch.htm. Accessed: 29/04/2009
Westmarland N. (2001). “The Quantitative/Qualitative Debate and Feminist Research: A Subjective View of Objectivity.” Available: http://www.qualitative-research.net/index.php/fqs/article/view/974/2124. Accessed: 29/04/2009
William M.K. (2006). “The qualitative debate.” Available: http://www.socialresearchmethods.net/kb/qualdeb.php. Accessed: 27/04/2009