The Annals of the American Academy of Political and Social Science, Volume 587A.L. Hummel, 2003 - 207 páginas |
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Página 33
... observed in the studies reviewed . many practical contexts we have to make decisions and act as though the null hypothesis were true ” ( p . 45 ; see also Cook et al . 1979 ) . For example , if we could state confidently based on our ...
... observed in the studies reviewed . many practical contexts we have to make decisions and act as though the null hypothesis were true ” ( p . 45 ; see also Cook et al . 1979 ) . For example , if we could state confidently based on our ...
Página 38
... observed , the “ proper goal of intervention research is to detect any effects of meaningful magnitude relative to the nature of the intervention and the conditions it addresses ” ( p . 108 ) . If , for example , the observed effect ...
... observed , the “ proper goal of intervention research is to detect any effects of meaningful magnitude relative to the nature of the intervention and the conditions it addresses ” ( p . 108 ) . If , for example , the observed effect ...
Página 70
... observed effects . At the same time , such interrelationships represent statistical confounding among the modera- tors that makes it difficult to determine the role of any one moderator . If , for instance , an analysis features one ...
... observed effects . At the same time , such interrelationships represent statistical confounding among the modera- tors that makes it difficult to determine the role of any one moderator . If , for instance , an analysis features one ...
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analysis Annals Anthony Petrosino antisocial behavior assess Before-after benefit-cost ratio Campbell Collaboration car parks CCTV closed-circuit television comparison control area control group cost-benefit cost-benefit analysis costs and benefits Crime and Justice crime prevention criminal justice Criminology criteria curfew enforcement curfew laws curfew violators David delinquency displacement edited effect of CCTV effect size effect sizes evaluation research evaluation studies evidence evidence-based experimental Farrington follow-up Gottfredson identify impact included internal validity intervention issue Justice Economics juvenile crime juvenile curfews juvenile offenders Lipsey Lösel Maryland Report ment meta-analysis methodological quality moderator variables months null hypothesis odds ratio outcome measures Pawson and Tilley percent postintervention practice Preventing crime prevention programs problems quality scale random assignment randomized experiments research design sample scale scientific score sentencing options Sherman standards statistical conclusion validity statistical power statistically nonsignificant findings statistically significant systematic reviews tion versus Weisburd Welsh