changes result!
it is basically asking what the definition of responding variable is and the book says, The variable that changes because of the manipulated variable is the responding variable.
The independent variable in an controlled experiment is what you are changing
The independent variable in an controlled experiment is what you are changing (for example, amount of water or sunlight a plant gets). The dependent variable changes because of the independent variable. Its the outcome of the independent variable.
In Spallanzani's experiment, the controlled variable was the type of container used to hold the broth. By using different containers with varying levels of accessibility to air, Spallanzani was able to determine the role of air in the generation of life.
Independent variable
it acts as a source. a dependent variable that isn't altered by any independent variables.
Temperature can be both an independent variable, where it is manipulated to observe its effect on other variables, or a dependent variable, where it is measured as an outcome of other factors. The role of temperature as a dependent variable or independent variable depends on the specific research context.
to present the starch.
Zimbardo's role in the Stanford Prison Experiment was as Superintendent. He was also the man behind the experiment tracking the changes in personally behavior when people were thrown into their role as a prisoner or a prison guard.
To compare data
The role of a monarch butterfly is to keep the milkweed population controlled
To establish a baseline to compare your results to.