What does meta-analysis aim to achieve in psychology research?

Meta-analysis aims to combine findings from multiple studies to provide a more generalized result or understanding of a particular phenomenon in psychology research. By aggregating data, researchers can identify patterns, draw stronger conclusions, and enhance the overall reliability of results, which single studies may not achieve due to their smaller sample sizes or methodological limitations. This approach allows psychologists to see how different studies converge or diverge on a given topic, thereby creating a clearer picture of the evidence available regarding psychological theories or interventions.

The other options focus on aspects that are not the primary purpose of a meta-analysis, such as comparing statistical methods, critiquing individual studies, or isolating only negative results, which do not align with the overarching goal of synthesizing collective evidence.