Probing the effects of individual components in multiple component prevention programs

West, Stephen G.; Aiken, Leona S.; Todd, Michael

doi:10.1007/bf00942173

Cited by 69Advanced Causal Inference TechniquesEvaluation and Performance AssessmentSubstance Abuse Treatment and Outcomes

Probing the effects of individual components in multiple component prevention programs

West, Stephen G., Aiken, Leona S., Todd, Michael·1993·American Journal of Community Psychology

DOI 10.1007/bf00942173

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Abstract

Assessing the contributions of individual components in multi‐component interventions poses complex challenges for prevention researchers. We review the strengths and weaknesses of designs and analyses that may be useful in answering three questions: (1) Is each of the individual components contributing to the outcome? (2) Is the program optimal? and (3), Through what processes are the components of the program achieving their effects? Factorial and fractional factorial designs in which a systematically selected portion of all possible treatment combinations is implemented are used to address question 1. Response surface designs in which each component is quantitatively scaled are explored in relation to question 2. Mediational analysis, a hybrid of experimental and correlational approaches, is considered in relation to question 3. Design enhancements are offered that may further strengthen some of these techniques. These techniques offer promise of enhancing both the basic science and applied science contributions of prevention research.

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Authors: West, S. G., Aiken, L. S., & Todd, M.
Affiliations: Arizona State University (US)
Corresponding author: West, Stephen G.
ORCID: Todd, Michael
Venue: American Journal of Community Psychology
Publisher: Wiley
Published: 1993-10
Volume: 21
Issue: 5
Pages: 571-605
ISSN: 0091-0562 (ISSN-L)
1573-2770
DOI: 10.1007/bf00942173
OpenAlex: W2085396258
Cited by: 69
References: 83
Citations by year: 2026: 1 · 2024: 2 · 2021: 1 · 2020: 3 · 2019: 1 · 2018: 4 · 2017: 2 · 2016: 2 · 2015: 1 · 2014: 2 · 2013: 1 · 2012: 5
FWCI: 0.95
Type: journal article
Language: en
Open access: closed
Licence: onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Locations: American Journal of Community Psychology (publishedVersion)
PubMed (publishedVersion)
Funders: National Institutes of Health (1r03ca046736-01, 2p50mh039246-06)
National Institute of Mental Health (NIMH P50MH39246)
National Cancer Institute (R03-CA46736)
Topics: Physical Sciences › Mathematics › Statistics and Probability › Advanced Causal Inference Techniques
Social Sciences › Decision Sciences › Management Science and Operations Research › Evaluation and Performance Assessment
Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
Keywords: multicomponent intervention, prevention programs, factorial design, fractional factorial design, response surface design, program optimization, intervention components, process evaluation
MeSH terms: Mental Disorders, Combined Modality Therapy, Community Mental Health Services, Humans, Outcome and Process Assessment, Health Care, Research, Risk Factors

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Probing the effects of individual components in multiple component prevention programs

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