Explain what the mean for the post test condition tells you.
Group of answer choices
After 4 months of gratitude writing, participants average mental health was M = 4.92 out of 7.
Before the 4 months of gratitude writing participants average mental health was M = 4.92 out of 7.
Participants mental health improved by M = 4.92 points after undergoing 4 months of gratitude writing.
After 4 months of writing, participants average gratitude was M = 4.92.