Conclusion: Findings from correlational research can be
used to determine prevalence and relationships among variables
, and to forecast events from current data and knowledge. … To assist researchers in reducing mistakes, important issues are singled out for discussion and several options put forward for analysing data.
What is the purpose of correlational research?
| Correlational research | Purpose Used to test strength of association between variables | Variables Variables are only observed with no manipulation or intervention by researchers | Control Limited control is used, so other variables may play a role in the relationship |
|---|
Why is correlation useful?
Not only can we measure this relationship but we can also use one variable to predict the other. For example, if we know how much we’re planning to increase our spend on advertising then we can use correlation to
accurately predict what the increase in visitors to the website
is likely to be.
What are the strengths and weaknesses of correlational research?
| Strengths: Weaknesses | Calculating the strength of a relationship between variables. Cannot assume cause and effect, strong correlation between variables may be misleading. |
|---|
What is correlational research in your own words?
Correlational research refers to
a non-experimental research method which studies the relationship between two variables with the help of statistical analysis
. Correlational research does not study the effects of extraneous variables on the variables under study.
What are the 4 types of correlation?
Usually, in statistics, we measure four types of correlations:
Pearson correlation, Kendall rank correlation, Spearman correlation, and the Point-Biserial correlation
.
Why is Pearson’s correlation used?
A Pearson’s correlation is used
when you want to find a linear relationship between two variables
. It can be used in a causal as well as a associativeresearch hypothesis but it can’t be used with a attributive RH because it is univariate.
What are the 5 types of correlation?
- Pearson Correlation Coefficient.
- Linear Correlation Coefficient.
- Sample Correlation Coefficient.
- Population Correlation Coefficient.
What is the disadvantage of correlational research?
The main disadvantage of correlational research is that
a correlational relationship between two variables is occasionally the result of an outside source
, so we have to be careful and remember that correlation does not necessarily tell us about cause and effect.
What are the strengths of a correlational research?
Correlational research can
help us understand the complex relationships between a lot of different variables
. If we measure these variables in realistic settings, then we can learn more about how the world really works.
What is the major weakness of correlational research?
A weakness of correlational studies is that
they can harbor biases due to self-selection into groups being compared
. Correlational studies can be costly, but often they are not. They are less artificial than studies involving interventions, and are often reasonably practical and manageable to implement.
What is an example of correlational research?
If there are
multiple pizza trucks in the area and each one has a different jingle
, we would memorize it all and relate the jingle to its pizza truck. This is what correlational research precisely is, establishing a relationship between two variables, “jingle” and “distance of the truck” in this particular example.
What are the characteristics of correlational research?
Correlational Research is a non-experimental research method. In this research method, there is no manipulation of an independent variable. In correlational research, the researcher
studies the relationship between one or more quantitative independent variables and one or more quantitative dependent variables
.
What are some examples of correlation?
- The more time you spend running on a treadmill, the more calories you will burn.
- Taller people have larger shoe sizes and shorter people have smaller shoe sizes.
- The longer your hair grows, the more shampoo you will need.
What does a correlation of 1 mean?
A correlation of –1 indicates a
perfect negative correlation
, meaning that as one variable goes up, the other goes down. A correlation of +1 indicates a perfect positive correlation, meaning that both variables move in the same direction together.
What type of correlation should I use?
When both variables are normally distributed use
Pearson’s correlation
coefficient, otherwise use Spearman’s correlation coefficient. Spearman’s correlation coefficient is more robust to outliers than is Pearson’s correlation coefficient.
