A testable variable is what you test several times for a scientific investigation or medical investigation.
You only change one variable in an investigation because if you change more than one you won't know which change affected the data.
Direct proportionality.
A function is a relation where one variable specifies a single value of another variable. Presenting relation and function can be done different ways including verbal, numerical, algebraic, and graphical.
If none of the variables are constant (or controls) you have no idea which variable or combination of variables caused the effect.
I will change the independent variable in my investigation. This variable is the one I manipulate or control to observe its effect on the dependent variable.
The manipulated variable in an investigation is called the independent variable. It is the variable that is intentionally changed or controlled by the researcher to observe its effect on the dependent variable.
A testable variable is what you test several times for a scientific investigation or medical investigation.
The variable under investigation is typically referred to as the "dependent variable" in a research study. This is the variable that is being measured or observed to determine how it is affected by changes in another variable, known as the independent variable.
In the investigation depicted in the drawing, the independent variable is changed. The independent variable is the factor that is manipulated or changed by the experimenter to observe its effect on the dependent variable.
The independent variable is the factor that is changed or tested by the person doing the investigation. It is the variable that is manipulated to observe its effect on the dependent variable.
is the factor that i deliberately manipulated in an investigation
dependent variable
You only change one variable in an investigation because if you change more than one you won't know which change affected the data.
the length of time the student left the spoons in the water
I dont know
crime investigation