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Effectiveness Of School-Based Anti-Bullying Programs In Spain: A Systematic Review

Table 1:

Research Design N
Pretest-postest with randomized control group 1
Pretest-postest with non-equivalent control group 10
Pretest-postest without control group 2
Follow-upYesNo 211
Balanced groups
In gender 8
In sample size 5
In age 11
In type of school (public-private) 1
Attrition problems reported 1
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