Describe qualitative and quantitative research
Qualitative and quantitative research ppt
Methods used to obtain qualitative data Qualitative researchers use a variety of methods to develop deep understandings of how people perceive their social realities and in consequence, how they act within the social world. The hard facts obtained will enable you to make decisions based on objective observations. Qualitative vs. They actually work much better as a team. Yet, quantitative research is not infrequently followed by qualitative research which then aims to explore select findings further. Jump to Quantitative Research Data Qualitative Research Qualitative research is empirical research where the data are not in the form of numbers Punch, , p. The problem of adequate validity or reliability is a major criticism. However, it is important to note that quantitative methods are not necessarily the most suitable methods for investigation. Quantitative data will give you measurements to confirm each problem or opportunity and understand it. Research is used to test a theory and ultimately support or reject it.
Nothing is predefined or taken for granted. For example, a rating scale or closed questions on a questionnaire would generate quantitative data as these produce either numerical data or data that can be put into categories e.
Quantitative research, on the other hand, generates reliable population-based and generalizable data that is suited to establishing cause-and-effect relationships.
Such scales are called Likert scales, and enable statements of opinion to be directly translated into numerical data. Journal of advanced nursing, 20 4 In fact, elements of both designs can be used together in mixed-methods studies.
As quantitative research explicitly specifies what is measured and how it is measured in order to uncover patterns in — for example — behavior, motivation, emotion, and cognition, quantitative data collection is considered to be much more structured than qualitative methods.
Types of qualitative and quantitative research
Denscombe, M. Qualitative research measures, in hopes of developing universal laws where qualitative research can be described as an exploration of what is assumed to be a dynamic reality. Thus, people and groups, are studied in their natural setting. Qualitative Research is conducted with the aim of exploring and discovering ideas used in the ongoing processes. Elements used in the analysis of qualitative research are words, pictures, and objects while that of quantitative research is numerical data. The data collected by the researcher can be divided into categories or put into rank, or it can be measured in terms of units of measurement. For example, diary accounts, open-ended questionnaires , documents, participant observation , and ethnography. Our page Analysing Qualitative Data provides more information about some of the most common methods. There are also a variety of computer packages to support qualitative data analysis. Which methods to choose will depend on the nature of the project, the type of information needed the context of the study and the availability of resources time, money, and human. To explore and discover ideas used in the ongoing processes. However, there are some pitfalls to qualitative research, such as: If respondents do not see a value for them in the research, they may provide inaccurate or false information.
Qualitative analysis involves a continual interplay between theory and analysis. It is generally harder for qualitative researchers to remain apart from their work. The problem of adequate validity or reliability is a major criticism.
The research aims for objectivity i.
At the same time, it frequently generates ideas and hypotheses for later quantitative research. This type of data can be used to construct graphs and tables of raw data.
Variability of data quantity: Large sample sizes are needed for more accurate analysis. The design of the study is determined before it begins.
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