Table 2.

Description of Study Measures

Subscale	Item Total Correlations	Alpha
Collective Efficacy – Afterschool Connectedness subscale – 8 items		.83
1. I feel close to people at my afterschool program	.43
2. I feel like I am a part of my afterschool program.	.56
3. I am happy to be at my afterschool program.	.67
4. The staff in my afterschool program treats children fairly.	.60
5. I have trouble getting along with the staff at my afterschool program2	.23
6. I feel that my afterschool program staff cares about me.	.74
7. I feel safe in my afterschool program	.68
8. I like the children in my afterschool program	.54
Collective Efficacy – Willingness to Intervene Subscale – 12 items		.92
1. If children in this program are misbehaving, other children remind   them to act their best	.67
2. If other children start to say bad things to each other, children in this   program remind them to say something good to each other.	.69
3. In this program, if we see one child hurting another child, we would   tell them to stop.	.71
4. In our program, we can be leaders and help other children do well in   our program.	.73
5. In this program, I feel like other children listen to me when I have   something to say.	.56
6. The children in our program know how to stick up for a child who is   being hurt or treated badly	.70
7. The children in our program know how to do our work and not let   other children get us in trouble.	.60
8. At my afterschool program, if some other kids are going to do   something bad, I tell someone who can help	.62
9. In this program, we help each other when we have problems	.74
10. If a child is teasing another child because they are not good at sports or   exercise, other children tell him or her to stop	.72
11. In this program, if a kid was going to do something to hurt another kid,   one of the other kids would tell someone who can help.	.62
12. If I was asked by another student at this program to do something that I   shouldn’t do, one of the kids in my afterschool program would tell me   not to do it.	.70
Strengths, Difficulties Questionnaire (SDQ) – 22 items
Pro-social Behavior3
Sample item: “ I usually share with others”	na	.81
Emotional Symptoms
“I am sad a lot”	Na
Conduct Problems	Na
“I am often accused of lying or cheating”
Hyperactivity	Na
“I have trouble staying in my seat when I am supposed to”
Problem behaviors		.66
Smoked cigarettes	.47
Broken or damaged property	.24
Drunk wine, beer, alcohol	.49
Shoplifted	.55
Smoked marijuana/weed/reefer	.42

²Item reverse-coded prior to analysis

³Items of this scale were reverse-coded