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,
First there is qualitative research, this type of research involves reasoning behind human behaviors. Second there is quantitative research, this type of research involves mathematical and statistical means to gain results ("Experiment-Resorces.com", 2008). Thirdly there is primary research, which involves fresh data, or data that does not already exist such as, interviews, autobiographies, and observations. Last is secondary research. Secondary research uses existing data such as published statistics, media, or personal documents to try to gain results.
To control or eliminate these threats, controlled experiments are done. 4. The quantitative method is a research technique the produces measureable results that can be analyzed statistically. The qualitative method of research produces subjective results or results that are difficult to quantify. With the qualitative method, there is more room for interpretation.
Communication Research Methods Matrix Name of method Description of method When method is used Surveys Survey methodology is useful in identifying the truth. Through this, issues can be addressed more efficiently. In this, data is collected from large mass of people. This method is useful in identifying needs and wants of stakeholders in organization, for developing strategies and collecting large amount of data (Eribo & Tanjong, 2002). Triangulation It is the communication method in which one person does not communicate directly to another person.
What are the similarities and differences between qualitative and quantitative research? Qualitative research is deals with collecting descriptive information that cannot be definitely measured on an exact scale, often things that are observed. Examples would be emotions or feelings, attitudes, behavior, etc. It is a research method for exploring issues and topics in an attempt to understand them better and obtain answers and in some cases find similarities. Qualitative research is used in business research, market research and even scientific research.
The term quantitative refers to data that is measured or identified on a numerical scale. It is preferred by Positivists such as Durkheim as they like scientific data that is representative and reliable. On the other hand qualitative data is ‘rich’ data that explores the meanings and motives of different human behaviours. Qualitative data is preferred by Interpretivists such as Douglas as they want to gain validity and verstehen. Suicide can be operationalised in different ways, and it is argued that the different ways that it is operationalised results in what therefore is learnt about suicide.
Advantages of the scientific method The first advantage of the scientific method is that it allows psychologists to have control of several variables within the study. When using the scientific method the psychologist has greater control over any extraneous variables (EV) in order to produce fewer confounding variables, also the independent variable (IV) is able to be manipulated to see the effect on the dependent variable (DV). It’s an advantage to have control over the variables because it allows the researchers to establish cause and effect which enables the researcher to draw conclusions with far more certainty than non-scientific methods such as case studies or clinical interviews. The scientific method allows has a higher internal validity than non-scientific methods as control of the variables ensuring the research is measuring what it intends to measure. Asch is an example of a study which used the scientific method and had control over the variables.
The first scenario utilizes quantitative research. This type of research uses traditional scientific method to measure and analyze evidence that yields numerical data or information (Polit & Beck, 2010). Quantitative research is allied with a positivist paradigm in which objectivity, deductive processing and generalization are employed. These methods are strengths of such research whereas the requirement of large sample sizes and the inability to answer moral or ethical questions are its weaknesses. On the evidence hierarchy, it is in the Level IIa category because it is presented as a single randomized clinical trial.
Petersons STM study was argued to be high in internal validity, and this was mainly due to the fact that instructions to participants were standardised, repetitions of consonants or tridiagrams was prevented and extraneous variables were controlled, thus meaning the experiment had high internal validity and also made it easier to replicate. However a problem with the study was the fact it is actually challenged by
Other types of research are qualitative and quantitative research. In the qualitative research concepts are assigned a numerical value, and in the quantitative research concepts are based on ideas or terms that improve our understanding. The language of research is like a foreign language, most people do not understand it called researchese. To the people who do not understand the language of research is research shock. An individual new to research will not have a problem learning the research language.