Answer:Intervening Variable
Step-by-step explanation:
What is an Intervening Variable?
This is a hypothetical variable which creates links between other variables.
It's not experimental but only hypothetical for example the correlation between being poor and early death however the correlation doesn't mean that when you poor that will shorten your life so other hypothetical variable can be used to give further explanation.
Intervening variables in this case can be things like less access to proper healthcare.
Intervening variable often intervenes between other variables and can be referred to as a mediator