School Discipline & Outcomes
Predictors of Suspension
Pathways & Mediation
100

What percentage of suspended students were arrested by Year 15 compared to their nonsuspended peers?

20% of suspended students vs. 5% of nonsuspended students

100

Which two demographic factors were the strongest predictors of being suspended?

Being Black (OR = 3.28) and being male (OR = 5.13)

100

According to the mediation analysis, which mechanism explained the largest portion (52%) of the link between early suspension and later arrest?

Repeated school sanctions or expulsions

200

What statistical method did the researcher use to account for pre-existing differences between suspended and nonsuspended students?

Propensity Score Matching (PSM)

200

Attending a school with which type of staff member lowered the odds of suspension by 22%?

A guidance counselor

200

What percentage of the suspension–arrest association was explained by increases in delinquency?

31.7%

300

After matching, how much more likely were suspended students to be arrested compared to similar peers who were not suspended?

They were more than twice as likely (18.5% vs. 8.8%)

300

Children exposed to which environmental toxin faced nearly double the odds of suspension?

Lead poisoning (OR = 1.98)

300

What key idea explains how initial suspensions may lead to harsher future treatment by schools?

The “mark” of a disciplinary record makes schools less forgiving, leading to escalating sanctions