5.5.A—Describe research and trends in the treatment of psychological disorders question 1
Dr. Craig studies the relationship between exposure to electronic devices and weight during childhood. In one study, he compares the findings of many studies over the last 50 years to try to draw a general, overarching conclusion. What type of study is this?
A
Ex post facto study
B
Correlational study
C
Meta-analysis
D
Experiment