Qualitative and Quantitative research methods are used to create research reports. They are two different ways of collecting data, so the reports can be prepared efficiently and effectively. They both have their own ways of collecting data and information, and they both have advantages and disadvantages Many people are not aware of the two types of research, Qualitative and Quantitative; they are both very important if you want to write a proper report. The purpose of this report is to compare the two methods of research. The report will discuss the differences between the two types of research and also the advantages and disadvantages of each.
The population also has specific characteristics that are taken into consideration though out the study, and might include age, gender, employment statues, or education and are known as variables; variable meaning that the specific characteristics within the population may vary from unit to unit. Two different types of variables include dependent and independent variables. Dependent variables represent the output or effect that the population within the experimental unit undergoes. In contrast, independent variables represent the inputs or the cause of observed from the population. In research both types of variables not only are used but they have to be used.
Qualitative research is used in business research, market research and even scientific research. This type of research often focuses on broad or broader topics and the information is often biased because in many cases the collected data involves opinions and feelings or actions. Qualitative research also involves the investigator or researchers involvement in some way. The researcher or investigator is usually directly involves with the collection of data (i.e. : conducting interviews, surveys, leading the focus, etc.)
CONFOUND: A confound means that there is an alternative explanation beyond the experimental variables for any observed differences in the dependent variable EXTRANEOUS VARIABLES: Variables that naturally exist in the environment that may have some systematic effect on the dependent variable DEMAND CHARACTERISTIC: Experimental design element or procedure that unintentionally provides subjects with hints about the research hypothesis DEMAND EFFECT: Occurs when demand characteristics actually affect the dependent variables HAWTHORNE EFFECT: People will perform differently from normal when they know they are experimental subjects PLACEBO: A false experimental condition aimed at creating the impression of an effect PLACEBO EFFECT: The effect in a dependent variable associated with the psychological impact that goes along with knowledge of some treatment being administered CONSTANCY OF CODITIONS: Means that subjects in all experimental groups are exposed to identical conditions except for the differing experimental treatments COUNTERBALANCING: Attempts to eliminate the confounding effects of order of presentation by requiring that one-fourth of the subjects be exposed to treatment A first, one-fourth to treatment B first, one-fourth to treatment C first, and finally one-fourth to treatment D
It all depends on how sensitive the mean is, for example when it is very sensitive in the extreme values and the distribution is not symmetrical, and the mean will be away from the center and more near the extreme values. In statistics normality is important so the underlying population is normally distributed. (Doane & Seward, 2007) * What effect does sample size, n, have on the estimate of the mean? Is it possible to normalize the data when the population shape has a known skew? How would you demonstrate the central limit theorem to your classmates?
He also believed that different interviews are used for different purposes. Research through interview attains information and understanding of issues which are relevant to specific questions of a research project. Arkskey 1999 et al.... believed that one of the great strengths of using interviews for research is that it takes many different approaches. Structured interviews are when a researcher asks questions which are set in advance. A disadvantage to this will be that the researchers may be biased as they will already have a set of questions therefore likely to gain expected answers.
The slope b is the approximate change in y when x increases by 1. 2. How do you use the regression line for prediction? To make a prediction when you have population data, take average of group; group averages very often form line, also to make a prediction when you have a sample, take all group averages and draw a line of best fit; use line to predict. Regression models are often constructed based on certain conditions that must be verified for the model to fit the data well, and to be able to predict accurately.
* External validity/selection bias: the number of study participants and how participants are selected, with greater external validity assigned to studies with a larger number or participants who are randomly assigned to experimental conditions. * Generalization: the extent to which an experimental effect is observed beyond the treatment setting, under natural conditions, and maintained over time. Dissemination of Evidence-Based Practices in
The diversity in psychology can influences major concepts to human behavior. The ability within psychology can circumscribe individuals because of the diverse nature. Influence of Diversity and Major Concepts Diversity has an impact on
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.