Question: A study compares cognitive functioning among two groups: 1) A group that reports using marijuana and 2) A group that reports no use of marijuana.

A study compares cognitive functioning among two groups: 1) A group that reports using marijuana and 2) A group that reports no use of marijuana. What is the explantory variable?

Select one:

Cognitive functioning

Marijuana use

c.How many years someone uses marijuana

Change in cognitive abilities

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