Yes, But What's the Mechanism? (Don't Expect an Easy Answer)
Psychologists increasingly recommend experimental analysis of mediation. This is a step in the right direction because mediation analyses based on nonexperimental data are likely to be biased and because experiments, in principle, provide a sound basis for causal inference. But even experiments cann...
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| Veröffentlicht in: | Journal of personality and social psychology 2010-04, Vol.98 (4), p.550-558 |
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| container_end_page | 558 |
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| container_title | Journal of personality and social psychology |
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| creator | Bullock, John G Green, Donald P Ha, Shang E |
| description | Psychologists increasingly recommend experimental analysis of mediation. This is a step in the right direction because mediation analyses based on nonexperimental data are likely to be biased and because experiments, in principle, provide a sound basis for causal inference. But even experiments cannot overcome certain threats to inference that arise chiefly or exclusively in the context of mediation analysis-threats that have received little attention in psychology. The authors describe 3 of these threats and suggest ways to improve the exposition and design of mediation tests. Their conclusion is that inference about mediators is far more difficult than previous research suggests and is best tackled by an experimental research program that is specifically designed to address the challenges of mediation analysis. |
| doi_str_mv | 10.1037/a0018933 |
| format | Article |
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| source | MEDLINE; Sociological Abstracts; EBSCOhost APA PsycARTICLES; Applied Social Sciences Index & Abstracts (ASSIA) |
| subjects | Analysis Bias Biological and medical sciences Causality Experiments Fundamental and applied biological sciences. Psychology Humans Indirect effects Inference Mediation Methodology. Experimentation Models, Psychological Psychological aspects Psychological effects Psychological factors Psychologists Psychology Psychology, Experimental - methods Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Psychometrics. Statistics. Methodology Social psychology Validity |
| title | Yes, But What's the Mechanism? (Don't Expect an Easy Answer) |
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