Positive Action logo
Positive Action logo
Positive Action logo
Positive Action logo
Positive Action logo
Evidence Based. Internationally Recognized.
Email
Short URL
Overview
Research
Catalog
Accolades
Email
Short URL
Outcome
Improvement
Effect Size
p - value
Publication
Study
Date
Frequency of Disruptive Behaviors - Student Reports
-19%
-0.50
- -
2013
Normative Beliefs in Support of Aggression - Student Report
-25%
-0.68
- -
2013
Violent Behaviors
75%
- -
< 0.001
2013
Violence - Related Behaviors
36%
- -
- -
2011
Carried Knife or Razor to Hurt Someone
63%
0.64
- -
2009
Threatened to Cut or Stab Someone
62%
0.62
- -
2009
Cut or Stabbed Someone
71%
0.77
- -
2009
Carried a Gun
56%
0.57
- -
2009
Shot at Someone
75%
0.89
- -
2009
Gets Into a Lot of Fights - Teacher Report of Student Behavior
29%
0.30
- -
2009
Physically Hurts Others - Teacher Report of Student Behavior
33%
0.31
- -
2009
Threatens Others - Teacher Report of Student Behavior
29%
0.27
- -
2009
Violent Behaviors
51%
- -
0.001
2009
Violent Behaviors -Teacher Reported
34%
- -
0.035
2009
Destroys Things Belonging to Others - Teacher Report of Student Behavior
40%
0.41
- -
2009
Violent Behavior - Matched Sets
68%
0.965
0.000
2003
High School Violence - Low Feeder
31%
0.70
0.000
2003
High School Violence - High Feeder
50%
0.70
0.000
2003
Middle School Violence - Low Feeder
36%
0.66
0.047
2003
Middle School Violence - High Feeder
70%
0.65
0.047
2003
Violence
26%
1.26
- -
Prior to 2001
2002
Violence - Student to Student
87%
- -
0.048
2001
Violence - Student to Staff
100%
- -
0.022
2001
Violent Incidents - per school
86%
- -
0.028
2001
Violent Incidents - per 1000 students
85%
- -
0.013
2001