In the doctor's research on coffee consumption, social media usage and students' academic performance (Coffee (centred), b = 0.190, t = 3.23, p = 0.015), which is the mediator variable?
A) Coffee consumption
B) Test score
C) Social media usage
D) The Z-score

Question

Quizplus · Accepted Answer

The mediator variable is the variable that lies between the independent and dependent variables in a causal chain. In this case, it is social media usage as it is the variable that could be affecting the relationship between coffee consumption and academic performance.

In the Doctor's Research on Coffee Consumption, Social Media Usage