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In which type of research is one or more variables deliberately changed?
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∙ 6y ago
an experiment
Elissa Gutmann
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The scientific investigation of the relationship between two or more variables describes which of these?
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How many variables are changed in an investigation?
Only one variable at a time . after one time has passed you can use more ..
What is ex-post-facto design?
Ex Post Facto (also called Causal Comparative Research) is useful whenever: • We have two groups which differ on an independent variable and we want to test hypotheses about differences on one or more dependent variables OR • We have two groups which already differ on a dependent variable and we want to test hypotheses about differences on one or more independent variables
Why should only one variable at a time be changed in scientific experiments?
Doing so can enable you to pinpoint which independent variable had what effect on the dependent variable. If more that one variable is altered, there is no way of knowing which of them actually contributed to the change without doing further experimentation.
What controlled variables in science?
The number of dependent variables in an experiment varies, but there is often more than one. experiments also have controlled variables are quantities that a scientist wants to remain constant, and he must be observe them as carefully as the dependent variables.
The variable which is deliberately changed in experiment?
Independent, it is in the name, more variables are: dependant variable- the one you keep the same control variable- mearsuring variable
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.
What is the difference between research in the lab and fields?
In the lab you have more control over variables
What is different between research in the field and in the lab?
In the lab you have more control over variables
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.
When testing a hypothesis by conducting a controlled experiment two variables are changed at a time?
It is simplest if only one variable is changed at a time, but that requires more experiments or a larger sample. That may not always be possible.However, if more two or more variables are changed at a time, it is important that the experiment is well designed so that their interaction is either nullified or can be estimated.
How many variables are changed in an investigation?
Only one variable at a time . after one time has passed you can use more ..
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.
How many variables should there be in a good experiment?
There should be one dependent variables. Depending on the type of research you are doing, the amount of independent variables will change. If you are doing research on a large scale, you will use more independent variables. If it's on a small scale, you will use very little. If you are not able to run your regression it means your sample size is too small or you have too many independent variables.
What do limitig factors control?
if the question refers to Independent, dependent and control variables, then the limiting factors are the control variables which are the items that will not be changed or modified during an experiment for more information, please refer to the 'scientific method"
