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What kind of research is needed to establish a cause-and-effect relationship between two variables?
Wiki User
∙ 11y ago
You need to set up an experimental study. The variable which is the cause should be randomly assigned and the effect variable is then observed. Other study designs can only tell you that there is a link or correlation, but not necessarily a causal relation.
Wiki User
∙ 11y ago
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What are the advantages and disadvantages of describing a relationship between variables in a written report?
The advantage is knowing what you are writing about, and why. The disadvantage is not doing the research,and not knowing what you are supposed to be writing about.
What is non-directional research hypothesis?
A non-directional research hypothesis is a kind of hypothesis that is used in testing statistical significance. It states that there is no difference between variables.
What is the relationship between research and statistic?
In undertaking a research project,it requires the collection of data in order to arrive at a research conclusion
Which research method assesses how well one variable predicts another without demonstrating a cause-effect relationship between the variables?
There is probably no such study. A correlation or regression analysis works only with linear relationships. Any even function over a symmetric interval will give a correlation coefficient of 0; suggesting no relationship and so no predictive power. That is utter nonsense. If two variables are independent of one another but are affected by a third variable which is unknown to (or overlooked by) the experimenter then one of the two observed variables may appear to predict the other observed variable but that will fall apart if the unknown variable changes. For example observed variables: my age and number of cars in the country. Both related to time and fairly good predictive power. But the predictive power will fail if I move to Another Country.
Disadvantage of secondary data?
Secondary data may not answer fully answer the research questions of a study. It is also hard to establish its validity, and if proper sampling and data collection methods were employed.
The only research method that can establish a cause-and-effect relationship is?
An experiment
The scientific investigation of the relationship between two or more variables describes which of these?
ReSearch
What is cor-relational research?
Correlation Research Method, a statistical measure of a relationship between two or more variables, gives an indication of how one variable may predict another.
Which research method assesses how well one variable predicts another without specifying a cause and effect relationship between the variables?
Correlational research
What advantage does the experimental method have over non-experimental methods of research?
can establish cause and effect relationship
What is research methodology?
this method provides an explanation about the extent of relationship between two or more variables. it examines the relationships including similarities or differences among several variables.
What is comparative research methodology?
this method provides an explanation about the extent of relationship between two or more variables. it examines the relationships including similarities or differences among several variables.
What is the difference between experimental and ex post facto research?
Ex-post facto research measures the cause and effect relationship without manipulating the independent variable. While the experimental research starts from manipulating and controlling the independent variables and proceeds to observing the effect on the dependent variables.
What is the difference between experimental and ex post facto research design?
Ex-post facto research measures the cause and effect relationship without manipulating the independent variable. While the experimental research starts from manipulating and controlling the independent variables and proceeds to observing the effect on the dependent variables.
What is correlational research method?
Correlation Research Method, a statistical measure of a relationship between two or more variables, gives an indication of how one variable may predict another.
Are controlled variables the sames as research variables?
yes
What research method can best establish a cause and effect relationship?
Just be honest and don't do anything you'll regret later. No method.
