Abstract
Objectives
Whether people are affected by the criminal behavior of peers (the “influence” perspective) or simply prefer to associate with others who are similar in their offending (the “selection” perspective) is a long-standing criminological debate. The relatively recent development of stochastic actor-oriented models (SAOMs—also called SIENA models) for longitudinal social network data has allowed for the examination of selection and influence effects in more comprehensive ways than was previously possible. This article reports the results of a systematic review and meta-analysis of studies that use SAOMs to test for peer selection and influence effects.
Methods
A systematic review and 3-level random effects meta-analysis of studies that have used SAOMs to test selection and influence dynamics for offending behavior.
Results
There is support for both influence (mean log odds ratio = 1.23, p < 0.01, 21 effects, pooled n = 21,193) and selection dynamics (mean log odds ratio = 0.31, p < 0.01, 28 effects, pooled n = 21,269). Type of behavior, country, and the year of the first wave of data collection are found to moderate the influence effect; no significant moderation effects are found for peer selection on offending.
Conclusions
People are both influenced by the offending of their peers and select into friendships based on similarity in offending.
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Notes
Articles where the behavioral measure was a composite of substance use and delinquency were excluded to ensure that the focus on delinquency was clear. For example, Franken et al. (2016) was excluded as they combined involvement in delinquency, alcohol use, and tobacco use in their measure of externalizing behavior. We did, however, test supplementary models that included weapon carrying (Dijkstra et al. 2010, 2012), a behavior that does not meet the “clearly illegal” criterion, and found that doing so did not alter the results in any meaningful way.
Four potentially relevant non-English language articles were found since they had English abstracts. We were able to find the English language master's thesis that one was drawn from (De Cuyper et al. 2009), the author of two others sent us a copy of an article that was soon to be released online that used the same data (Shin 2017), and the author of the final potentially relevant non-English article confirmed that SIENA models were not used.
We conducted supplementary analyses in which the nature of the scale (multi-item average, variety scale, dichotomized, etc.) was tested as a moderator. The mean effect sizes were not found to depend on the form of the scaling.
The exception here is Haynie et al. (2014). They reported separate results for violent and non-violent crime, but since the correlation between these outcomes is known (not reported in the article, but we used the same data to generate this correlation—r = 0.562), a suitable synthetic estimate can be produced that is not based on an assumed correlation but on the observed data. We combined these results into a single effect by averaging the individual effects and calculating the variance using the equation recommended by Borenstein et al. (2009, p. 227):
\( V_{{\bar{Y}}} = \frac{1}{4}\left( {V_{{Y_{1} }} + V_{{Y_{2} }} + 2r\sqrt {V_{{Y_{1} }} } \sqrt {V_{{Y_{2} }} } } \right) \)
\( V_{{Y_{1} }} \) = variance of effect 1.
\( V_{{Y_{2} }} \) = variance of effect 2.
\( r \) = correlation between outcome 1 and outcome 2.
We also tested supplementary models in which the violent and non-violent crime estimates were included as separate effects. The difference in results was negligible (available on request).
An outlier (De La Rue 2015) was excluded from this figure as it altered the horizontal axis scaling such that it obscured the other effects that had narrower confidence intervals. The forest plot including this effect can be accessed in the online supplementary material.
For example, Osgood et al. (2015) used a 4-category delinquency scale; the reported influence effect was 1.108 (SE = 0.084). This was rescaled as follows:
Log odds ratio = 1.108/(4 − 1) = 0.369
SE = 0.084/(4 − 1) = 0.028.
Equation 7.1: Converting log odds ratio to d.
\( d = Log\,odds\,ratio\, \times \frac{\sqrt 3 }{\pi } \).
Equation 6.5: Converting z to r.
\( r = \frac{{e^{2z} - 1}}{{e^{2z} + 1}} \)
Equation 7.5: Converting r to d.
\( d = \frac{2r}{{\sqrt {1 - r^{2} } }} \).
Imputation methods exist for network ties (Wang et al. 2016), but they are not yet widely implemented.
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Acknowledgements
The authors would like to thank Nate Doogan for his valuable comments on an earlier version of this article.
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Appendices
Appendix 1: Database Search Terms
All searches conducted by Sarah Brown, Liaison Librarian, University of Waterloo.
Scopus Search
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Performed June 3, 2015; updated on April 22, 2017
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Database: Scopus
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Retrieved 754 results and 958 results respectively
((TITLE-ABS-KEY(peer* OR friend* OR gang* OR social OR “collective behavior*” OR “collective behavior*”) AND PUBYEAR > 2000) AND ((TITLE-ABS-KEY(delinquen* OR firearm* OR weapon* OR aggressi* OR devian* OR criminal* OR crime OR assault OR vandal* OR perpetrator* OR arson OR “driving under the influence” OR “drunk driving” OR “drunk driver*” OR “human traffick*” OR kidnapping OR “sex* offen*”) OR TITLE-ABS-KEY(theft OR burglar* OR fraud OR “illegal drug distribution” OR “drug traffick*” OR violen* OR stalking OR stalker* OR terroris*))) AND ((TITLE-ABS-KEY(influenc* AND select*) OR TITLE-ABS-KEY(stochastic AND actor) OR TITLE-ABS-KEY(siena) OR TITLE-ABS-KEY(“simulation investigation”) OR TITLE-ABS-KEY(stochastic AND model*)))) AND (LIMIT-TO(LANGUAGE, “English”))
Cited Reference Search Snijders, T. A. B. (2001). The statistical evaluation of social network dynamics. Sociological Methodology, 31(1), 361–395.
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Run on June 23, 2015; updated on May 2, 2017.
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Retrieved 331 results and 443 results respectively.
PsycInfo Search
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Performed June 3, 2015; updated on April 22, 2017.
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Database: PsycNET.
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Retrieved 442 results and 562 results respectively.
(Any Field:(delinquen* OR firearm* OR weapon* OR aggressi* OR devian* OR criminal* OR crime OR assault OR vandal* OR perpetrator* OR arson OR “driving under the influence” OR “drunk driving” OR “drunk driver*” OR “human traffick*” OR kidnapping OR “sex* offen*” OR theft OR burglar* OR fraud OR “illegal drug distribution” OR “drug traffick*” OR violen* OR stalking OR stalker* OR terroris*) AND Year:[2001 TO 2018]) AND (Any Field:(influenc* AND select*) OR Any Field:(stochastic AND actor) OR Any Field:(siena) OR Any Field:(“simulation investigation”) OR Any Field:(stochastic AND model*)) AND (Subject:(peer* OR gang OR gangs OR friend* OR social* OR “collective behavior*” OR “collective behavior*”) OR Abstract:(peer* OR friend* OR gang OR gangs OR “collective behavior*” OR “collective behavior*”) OR Abstract:(“social network*” OR “social support*” OR “social influence*”))
Wilson Social Sciences Full Text
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Performed June 3, 2015; not updated in 2017 (library subscription expired).
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Database: EBSCO.
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Retrieved 116 results
(TX delinquen* OR firearm* OR weapon* OR aggressi* OR devian* OR criminal* OR crime OR vandal* OR perpetrator* OR arson OR “driving under the influence” OR “drunk driving” OR “drunk driver” OR “drunk drivers” OR “human trafficking” OR “human trafficker” OR “human traffickers” OR kidnapping OR “sex offenses” OR “sex offender” OR “sex offenders” OR “sexual offenses” OR “sex offences” OR “sexual offences” OR assault OR theft OR burglar* OR fraud OR “illegal drug distribution” OR “drug trafficker” OR “drug trafficking” OR “drug traffickers” OR violen* OR stalking OR stalker* OR terroris*) AND ((DE “Friendship” OR DE “Peer relations” OR DE “Friendship -- Sociological aspects” OR DE “Social networks” OR DE “Social support” OR DE “Social interaction” OR DE “Social pressure” OR DE “Peer pressure” OR DE “Social influence” OR DE “Gangs”)) OR SU (social* or peer* or friend* OR gang*) OR TI (social* or peer* or friend* OR gang*) OR AB (social* or peer* or friend* OR gang*) AND (influenc* AND select*) OR (stochastic AND actor) OR siena OR “simulation investigation” OR (stochastic AND model*)
Web of Science
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Performed June 3, 2015; updated April 24, 2017.
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Database: Web of Science.
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Retrieved 821 results and 1338 results respectively.
#5 | #3 AND #2 AND #1 Refined by: LANGUAGES: (ENGLISH) DocType = All document types; Language = All languages |
#4 | #3 AND #2 AND #1 DocType = All document types; Language = All languages |
#3 | TOPIC: (delinquen* OR firearm* OR weapon* OR aggressi* OR devian* OR criminal* OR crime OR vandal* OR perpetrator* OR arson OR “driving under the influence” OR “drunk driving” OR “drunk driver” OR “drunk drivers” OR “human trafficking” OR “human trafficker” OR “human traffickers” OR kidnapping OR “sex offenses” OR “sex offender” OR “sex offenders” OR “sexual offenses” OR “sex offences” OR “sexual offences” OR assault OR theft OR burglar* OR fraud OR “illegal drug distribution” OR “drug trafficker” OR “drug trafficking” OR “drug traffickers” OR violen* OR stalking OR stalker* OR terroris*) DocType = All document types; Language = All languages |
#2 | TOPIC: (social* OR peer* OR friend* OR gang*) DocType = All document types; Language = All languages |
#1 | TOPIC: (influenc* AND select*) OR TOPIC: (stochastic AND actor) OR TOPIC: (siena) OR TOPIC: (stochastic AND model) OR TOPIC: (“simulation investigation”) DocType = All document types; Language = All languages |
Cited Reference Search Snijders, T. A. B. (2001). The statistical evaluation of social network dynamics. Sociological Methodology, 31(1), 361–395.
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Performed June 23, 2015; updated May 2, 2017.
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Retrieved 172 results and 241 results respectively.
Sociological Abstracts
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Performed April 24, 2017.
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Database: ProQuest.
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Retrieved 902 results.
(delinquen* OR firearm* OR weapon* OR aggressi* OR devian* OR criminal* OR crime OR vandal* OR perpetrator* OR arson OR “driving under the influence” OR “drunk driving” OR “drunk driver” OR “drunk drivers” OR “human trafficking” OR “human trafficker” OR “human traffickers” OR kidnapping OR “sex offenses” OR “sex offender” OR “sex offenders” OR “sexual offenses” OR “sex offences” OR “sexual offences” OR assault OR theft OR burglar* OR fraud OR “illegal drug distribution” OR “drug trafficker” OR “drug trafficking” OR “drug traffickers” OR violen* OR stalking OR stalker* OR terroris*) AND ((influenc* AND select*) OR (stochastic AND model*) OR (stochastic AND actor) OR SIENA OR “simulation investigation”) AND (ab(peer* OR friend* OR social* OR gang*) OR ti(peer* OR friend* OR social* OR gang*) OR su(peer* OR friend* OR social* OR gang*)) AND pd(20010101-20171231)
(Note: Limited to English language only).
ProQuest Dissertations and Theses Global
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Performed April 24, 2017.
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Database: ProQuest.
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Retrieved 691 results.
all(delinquen* OR firearm* OR weapon* OR aggressi* OR devian* OR criminal* OR crime OR vandal* OR perpetrator* OR arson OR “driving under the influence” OR “drunk driving” OR “drunk driver” OR “drunk drivers” OR “human trafficking” OR “human trafficker” OR “human traffickers” OR kidnapping OR “sex offenses” OR “sex offender” OR “sex offenders” OR “sexual offenses” OR “sex offences” OR “sexual offences” OR assault OR theft OR burglar* OR fraud OR “illegal drug distribution” OR “drug trafficker” OR “drug trafficking” OR “drug traffickers” OR violen* OR stalking OR stalker* OR terroris*) AND (all(influenc* AND select*) OR all(stochastic AND model*) OR all(stochastic AND actor) OR all(SIENA) OR all(“simulation investigation”)) AND all(peer* OR friend* OR social* OR gang*)
(Note: All terms searched “Anywhere—Except Full-text”. Limiters included: date range 2001—2017 and English only)
National Crime Justice Reference Service (NCJRS) Abstracts
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Performed April 24, 2017.
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Database: ProQuest.
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Retrieved 294 results.
(delinquen* OR firearm* OR weapon* OR aggressi* OR devian* OR criminal* OR crime OR vandal* OR perpetrator* OR arson OR “driving under the influence” OR “drunk driving” OR “drunk driver” OR “drunk drivers” OR “human trafficking” OR “human trafficker” OR “human traffickers” OR kidnapping OR “sex offenses” OR “sex offender” OR “sex offenders” OR “sexual offenses” OR “sex offences” OR “sexual offences” OR assault OR theft OR burglar* OR fraud OR “illegal drug distribution” OR “drug trafficker” OR “drug trafficking” OR “drug traffickers” OR violen* OR stalking OR stalker* OR terroris*) AND ((influenc* AND select*) OR (stochastic AND model*) OR (stochastic AND actor) OR SIENA OR “simulation investigation”) AND (ab(peer* OR friend* OR social* OR gang*) OR ti(peer* OR friend* OR social* OR gang*) OR su(peer* OR friend* OR social* OR gang*))
(Note: Limiters: date range 2001—2017 and English only)
Full Text Searches
JSTOR (3 Searches)
(((peer* OR friend*) AND (delinquen* OR crim* OR aggressi*)) AND (“stochastic model” ~ 5)) AND la:(eng OR en)
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Performed June 5, 2015; updated April 25, 2017.
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Date Range: 01/01/2001—current date; 01/01/2001—31/12/2017.
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Results = 242 and 246 respectively.
(((peer* OR friend*) AND (delinquen* OR crim* OR aggressi*)) AND (“stochastic actor” ~ 5)) AND la:(eng OR en)
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Performed June 5, 2015; updated April 25, 2017.
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Date Range: 01/01/2001—current date; 01/01/2001—31/12/2017.
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Results = 18 [same results on update].
(((peer* OR friend*) AND (delinquen* OR crim* OR aggressi*)) AND (“selection influence” ~ 10)) AND la:(eng OR en).
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Performed June 5, 2015; updated April 26, 2017.
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Date Range: 01/01/2001—current date; 2015–2017.
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Results = 1071 (First 300 included); 65.
Google Scholar (2 Searches)
(peer OR friend OR friendship) (crime OR delinquent OR delinquency OR aggression OR aggressive) (SIENA)
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Performed June 5, 2015; updated April 26, 2017.
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Date Range: 2001—current date; 2015—current date.
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Results = 7760; 2020 (first 200 included for both).
(peer OR friendship OR friend) (crime OR delinquent OR delinquency OR aggression OR aggressive) (stochastic actor)
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Performed June 7, 2015; updated April 26, 2017.
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Date Range: 01/01/2001—current date; 2015—current date.
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Results = 1280; 2540 (first 200 included for both).
Appendix 2: Study Flow Diagram
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Gallupe, O., McLevey, J. & Brown, S. Selection and Influence: A Meta-Analysis of the Association Between Peer and Personal Offending. J Quant Criminol 35, 313–335 (2019). https://doi.org/10.1007/s10940-018-9384-y
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DOI: https://doi.org/10.1007/s10940-018-9384-y