The variable which is nt get affected I. E., which is nt manipulated ND remains constant between dependent and independent variable relationship is known as control variable........
The variable which positivly reinforce the dependent variable I. E., which makes a positive reinforcement relationship between dependent and independent variable is known as moderatous variable........ryt GOURAV
The variable which doesn't have any negative effect on independent variable and the relationship between independent and dependent variable remains same is known as extranomous variable.......