Quantitative research allows assessing and analyzing data. The association between an independent and dependent variable is studied in detail. Quantitative research can be used to test hypotheses in trials since it is effective in measuring data gathered from the statistics. The main disadvantage of quantitative research is that a large sample of the population must be studied; the larger the sample of people researched, the more statistically accurate the results will be. However,
Research design have to consist of the logic and structure inherent in any particular approach to data gathering. There are two types of validity those are: those that limit the certainty that internal interventions caused the changes in research findings,which is called internal validity, and those that affect the ability of researchers to generalize the research
In this paper, I will respond to questions, such as the data collection procedures and how they are appropriate for this study. The right steps that are appropriate that have been taken to protect the subjects rights, and the way the data collection tool was used to support the reliability and validity of the study. As well as the ways the data analysis procedures are appropriate for the data collection. The ways the data analysis procedures are appropriate for answering the research questions or for testing the hypothesis or both. And explain the difference between qualitative and quantitative data.
Which is essential to objective reporting takes place, and scientists need to use critical thinking skills and be skeptical when analyzing data. The scientific method is an involved method to ensure that research is ethically complete (Shaughnessy, Zechmeister, & Zechmeister, 2009). In research two types of data exist, quantitative data, and qualitative data. Quantitative data refers to data that involves numbers; behaviors or objects that can be counted, such as statistics, percentages, and formula-based analysis (Shaughnessy, Zechmeister, & Zechmeister, 2009). Qualitative data refers to data that consists of verbal summaries, observations, or analysis.
Gillham 2000 said that interview is a conversation which aims to find answers to particular questions. It involves a discussion between two or more people where one plays the role of an interviewer and the other being the interviewee. It is a qualitative method of research which generally produces rich data. It may also take the quantitative approach. He also believed that different interviews are used for different purposes.
Methods Paper PSY/335 May 10th, 2015 Operationalization is the process of strictly defining variables into measurable factors. The process defines “fuzzy concepts” and allows them to be measured, empirically and quantitatively. First we need to define “fuzzy concepts” also known as vague ideas or an idea that is partially true. These ideas are often referred as conceptual variables. Operationalization is strengthening and clarifying, so we need to specify age, sex, nationality, or a combination of attributes, this will clearly state the population the method is working with.
With that being said, all experimental designs that are gauged as being truthful, must have a hypothesis statement at its core structure. And this should be the main focus of the experiment. Hypotheses can be obtained by a number of ways where certain observations lead to the formation of a theory. In a nutshell, hypotheses are research problems that are usually the result coming from a question or questions that are asked about a particular subject or topic. Furthermore, hypotheses must be testable by means of using if statements to make a point.
In psychology there are two essential elements in understanding theories and human behavior that is research and statistics, and how do we make sense of this information and the data collected. Primary and secondary data are the two main types of data in any research. “Primary data is information collected by the researcher directly through instruments such as survey, interviews, focus groups or observation. Tailored to his or her specific needs, primary researcher with the most accurate and up-to-date data. Secondary data, on the other
If you simply want to take a look into the behaviors of individuals then you will want to use qualitative research methodology. However, if you want to look at the statistics or percentage aspects of a situation then it is important that you use the quantitative research methodology. Mixed method research is actually where the use of quantitative and qualitative research method is both being used together to conduct a research and using both forms of data to come to a conclusion. It is appropriate to use both if a researcher wants to look at an issue in a 360 degree manor meaning they would like to see how many people the issue is actually affecting, as well as why it is affecting them. Scientifically sound research actually supports the function of a human service manager because the results or findings of this research is often backed up and proved successful by science laws, as well as being backed up by facts.
He also said that it builds protection against bias controlling alternative explanations, and being able to generalized and replicate findings (Creswell, 2009) p.4. From the above definition, three major characteristics of quantitative are presence of variables both dependent and independent ones, hypothesis, deductive testing of theory and a set structure of final report. (a). A set structure of report could be identified in the article A as it consists of introduction, literature, hypothesis, methods, results, discussions, and implications for practice in that sequence. (b).