What are the 5 types of variables?

There are six common variable types:

  1. DEPENDENT VARIABLES.
  2. INDEPENDENT VARIABLES.
  3. INTERVENING VARIABLES.
  4. MODERATOR VARIABLES.
  5. CONTROL VARIABLES.
  6. EXTRANEOUS VARIABLES.

For More Information Please Refer: https://linguistics.byu.edu/faculty/henrichsenl/ResearchMethods/RM_2_14.html