Intervention Stigmatization and Negative Selection

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In Simple Words

When a support initiative is framed as special assistance for struggling students, participating sends a visible social signal to peers that a student is flawed. It resembles placing a "broken vehicle" sign on a car in a public lot; drivers avoid standing near the car to prevent embarrassing assumptions from onlookers.

Pupils in the PODER attendance analysis

No PODER offer
Matching comparison group
Offered PODER, attended no sessions
Adjusted enrollment 9.0 percentage points lower

11th-grade enrollment in the next school year. Matching assumes selection explained by observed traits; nonattendance was not randomized and stigma was not established.

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Research question

Voluntary academic or psychological support targeted at at-risk students can create social stigma by labeling participants as problem students, thereby reducing participation and increasing dropouts among non-attendees.

Participants

N = 5,274 at-risk 10th-grade students across 20 public upper secondary schools in Mexico City.

Study Design

Randomized field experiment combined with a qualitative process evaluation involving interviews and focus groups with 32 teachers and 216 students.

Results

Treatment group students who attended zero sessions experienced a 9.0 percentage point reduction in 11th-grade enrollment (p < 0.01) and a 6.5 percentage point reduction in overall school engagement due to social stigma associated with psychological support.

Takeaway

Integrate socio-emotional skills support into the standard core curriculum during regular school hours rather than offering voluntary out-of-school targeted pull-out sessions.

Source and citation

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Plain-English glossary

Original explanations, informed by the references below. Examples are illustrations, not data from the studies above. The research text stays unchanged.

Percentage points

The difference between two percentages.

ExampleA rise from 40% to 50% is 10 percentage points. Relative to the starting value, that is a 25% increase.

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