If a researcher states, "Heavy drinking leads to decreased GPA, regardless of the student's intelligence level," what was found?

Question

Quizplus · Accepted Answer

The statement indicates that heavy drinking is associated with a decrease in GPA, regardless of intelligence level. This implies that there is a main effect for drinking on GPA, as heavy drinking is negatively impacting academic performance. The statement does not suggest an interaction between drinking and GPA, as there is no mention of different effects of drinking on GPA for different levels of intelligence. There is also no indication of a main effect for intelligence, as the statement suggests that drinking is the variable impacting GPA, rather than intelligence.

If a Researcher States, "Heavy Drinking Leads to Decreased GPA