Mirena is interested in studying the effects of gender on aggression. She collects all the studies she can find that have been conducted on this topic, and averages their results to generate a big picture of what the findings in that area reveal. Mirena has conducted a ____.

A) correlational study
B) field experiment
C) quasi-experiment
D) meta-analysis

Meta-analysis

A statistical technique that combines the results of multiple studies to identify patterns, discrepancies, or the overall effectiveness of a particular intervention.

Correlational Study

A research method that examines the relationship between two or more variables to determine if a change in one is associated with a change in the other(s), without necessarily proving causation.

Field Experiment

A research study conducted in a real-world setting, outside of the laboratory, to observe and measure natural behaviors.