BACKGROUND VARIABLE
Background variables are usually demographic characteristics—such as age, sex, ethnicity, and parents' income—that the researcher cannot manipulate. Also called “subject,” “organismic,” “classification,” and “individual-difference” variables.
ACADEMIC VIRIABLES
Recall that a variable is a characteristic of the unit that you are studying. If you are conducting an educational research study, a unit of interest may include: Students. Teachers. Parents.
ENVIRONMENTAL VIRIABLES
An environment variable is a dynamic-named value that can affect the way running processes will behave on a computer. They are part of the environment in which a process runs.
⚠️Examples of environmental variables
PATH : a list of directory paths. ...
HOME (Unix-like) and USERPROFILE (Microsoft Windows): indicate where a user's home directory is located in the file system.
HOME
SCHOOL DROP OUT
dropout. / (ˈdrɒpˌaʊt) / noun. a student who fails to complete a school or college course.
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