There are quantitative and qualitative methods in the realm of academic research seem to be the most relevant to the domains of professional study at Henley-Putnam University. These methods involve the collection of different types of data to help better understand the world around us. Quantitative research is associated with the hard sciences such as chemistry, engineering, and mathematics such as measuring items quantitatively can consist of observing the distance between planets as they revolve around the sun or recording the pressure within a closed container as heat is introduced to a particular liquid. In other words, quantitative methods allow for measuring one thing to compare against another known or unknown quantity to generate conclusions, sometime confirming hypotheses or creating new ones based on research outcomes. However, qualitative research is applied in the soft or social sciences, such as history, sociology and anthropology. According to Qualitative Research Consultants Association (QRCA), qualitative research seeks out the “why”, not the “how”, of its topic through the analysis of unstructured information. For instance, methodological discussions like how data is collected and analyzed. Qualitative research does not rely on statistics or numbers, which are the domain of quantitative researchers.
There is a debate between Quantitative and Qualitative methodologies to compare which is more appropriate or which produces better insight or which is best
The theoretical foundations of qualitative and quantitative methods are very different, but many researchers believe both methods should be used in the research study to increase validity and reliability.
Quantitative and qualitative research generates from two different perspectives, and it provide different types of crucial information from the research subject. Qualitative research corresponds more with comprehensive and thorough descriptions of events, whereas quantitative research creates statistical models to explain events. Several advantages and disadvantages in qualitative and quantitative research, depends upon the researcher's purpose and area of focus and information that will answer those research questions (Creswell, (2013).
A qualitative study addresses the complexity of human experience, focusing on the big picture (Rebar & Gersch, 2015); while a quantitative study breaks a problem down into small pieces and focuses on specific parts to see how they all relate (Rebar & Gersch, 2015). Qualitative methods focus on subjective information, and never try to predict or control the phenomenon of interest (Rebar & Gersch, 2015); on the other hand, quantitative methods focus on statistics and objective information, and can yield predictions and control (Rebar & Gersch, 2015).
According to Kothari (2008) qualitative research is concerned with qualitative phenomena which are related to or involve quality or kind. Qualitative research engages the collection and analysis of non-numerical data obtained from experiments, interviews, observations, and other resources involving statements and arguments. Research is conducted into particular context and non-numerical interpretive approach is used to produce narrative description of research data. Unlike quantitative research, this type of research considers the underlying facts behind the establishment of particular behaviors and assumptions. It is commonly used in behavioural sciences where the aim of research is to discover underlying motives of human behaviour.
There has probably been more energy spent on debating the difference, advantages and limitations between qualitative and quantitative research methods, it can be said that this issue has been debated to death with many spending years proving which methods is the best.
Quantitative research involves collecting data, which can be expressed numerically. The design is well structured with pre-determined outcomes. It frequently involves testing a hypothesis, which then can be analysed from the data deductively using statistical methods. Using numerical data is easier to analysis mathematical, so larger sample sizes can be utilised compared to qualitative research, therefore giving a better representative of the population; along with simplifying the process of making a generalisation. Another advantage is that studies can easily compare to similar findings (Kruger, 2003). The disadvantages are the results are limited and might not provide a proper understanding of the topic. Also, statistics and leading questions can be used to give a false representation of the data when summarising.
Quantitative research methods were originally developed in the natural sciences to study natural phenomena. However examples of quantitative methods now well accepted in the social sciences and education.
Quantitative research is considered to be the use of numbers. In the use of a quantitative study, the researcher test objective theories by examining the conjunction among variables. The variables used can be measured on instruments, so that numbered data can be used and analyzed (Creswell, 2008). Qualitative research is mainly used to explore and understand human or social problems. The process of qualitative studies includes questions and procedures; and the data is collected byway of participant’s settings. It allows the researcher to study an issue in great detail and depth, as well as not allowing data collection to be constrained by predetermined data. Mixed methods research combines quantitative and qualitative methods and it involves philosophical assumptions. This form of study includes collecting and analyzing data from a quantitative and qualitative perspective. It is believed that mixed methods research is a great method for practicing researchers who would like to bridge the schism between quantitative and qualitative research (Onwuegbuzie & Leech, 2004a). Even though these methods are different, they all involve philosophical assumptions and distinct methods or procedures (Cresswell, 2009).
Qualitative and quantitative research are methods used in Sociology to explain and describe data. However, these methods contrast in different important aspects.
Quantitative and qualitative methods differ from one another as to their research design elements as listed below:
Methods used in psychological research are used to obtain quantitative or qualitative data. Quantitative data is more often than not derived from methods such as experiments and statistics analysing data using surveys, questionnaires and interviews. Qualitative data tends not to be aimed at finding exact measurements in its findings, but is more concerned with evidence collection and analysis through practices such as observation and ethnography (using observations through involvement in activities over a period of time) (Brownlow 2011).
Defining Qualitative are dynamic they change because situations are not static and they having multiple realities, none of which is more valid or true than another. The purpose of qualitative methodology is to explain and get insight and understanding or description. By cautious and extreme literature review and data collection, which create hypotheses assumptions and the hypotheses are tested such inductive inferences develop while in contrast quantitative research methodology prevent relatively change in situation and events and it is depend on single reality which researcher ensure generalization and understanding. The aim of quantitative methodology in research is to predict the situation or event by the statistical testing of variables, whether they have correlation or not this is focused on numerical data such hypotheses are tested and develop deductive conclusion of the situation and event.
(i) Quantitative vs Qualitative Research: Qualitative research methods is based on values and not numbers while quantitative is based on numeric and Quantifiable data to generalize in its conclusion.
Birley and Moreland (1998) argued that data collection could be considered as the method towards developing a research proposal. Data collection can be considered as the process of a research project where the occurrence of ‘real’ research is felt by many researchers. Two types of data collection approach were chosen, qualitative and quantitative. Denzin and Lincoln (2005) mentions about qualitative research allow more in-depth understanding of the social and cultural impacts people experience. Qualitative methodology is a research process that allows the researcher to observe sociocultural lifestyle and feel the “live” action (Babbie, 2007). There are no indications of using any analysis or statistics (Boeree, 2005). The disadvantage of qualitative methodology are not comprehensive when compared to quantitative methodology as the information gathered are about interpreting the ideology and concluding the meanings as well as impacts taken from methodology (Oak Ridge Institute for Science and Education, 2011). In quantitative research, numbers are highlighted and are needed for
Quantitative research is one of three globally recognized research methods aligned with positivist and post-positivist knowledge claims; as a result, of empirical observations and measurements, quantitative research develops generalizations enable the researcher to predict, explain, and understand a phenomenon (Greene, 2014).