What do you call a variable that is measured during the experiment?
A variable is what is measured or manipulated in an experiment. A dependent variable is what you measure in the experiment and what is affected during the experiment. The dependent variable responds to the independent variable. It is called dependent because it “depends” on the independent variable.
Which description defines the variable in a scientific experiment?
The things that are changing in an experiment are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled.
How is an operational definition of a variable defined?
Operational Definition Refers to defining a variable in terms of the procedures used to measure or manipulate it. The precise statement of how a conceptual variable is turned into a measured variable. Scientists need to decide on specific procedures for measuring variables in research.
Why do we measure variables that cannot be observed?
Underlying characteristics or processes that are not directly observed but instead are inferred from measurable behaviours or outcomes. Many concepts in the behavioural scientists study represent psychological attributes that cannot be directly observed, so we observe measurable responses that are presumed to reflect these underlying attributes.
How are conceptual variables defined at the theoretical level?
Conceptual variables must be carefully defined at the theoretical level. It is an abstract concept that defines a term in academic discipline. Turn a concept of interest into a measured or manipulated variable. What is the difference between a variable and its levels?
What kind of variable does a researcher control?
Variable a researcher controls, usually by assigning participants to the different levels of that variable. I.e: assigning participants 10 mg of medication, some 20mg, and some 30mg.