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Predictor Variables

An individual student's probability of enrollment is calculated by combining data in his or her ACT record with weights. The weights are calculated from variables in students' ACT records and from enrollment data that institutions submit to the ACT Class Profile Service.

The tables below list the variables that are most predictive in each model.

Academic Variables
Variable Campus-Specific Institution Type Index Mobility Index Selectivity Index
ACT Composite••••
High school GPA•••
Years of foreign language   •
Program of study in HS   •
Years of math coursework   •
Highest degree expected   •

Demographic Variables
Variable Campus-Specific Institution Type Index Mobility Index Selectivity Index
Home community size•   
High school enrollment•   

Enrollment Preference Variables
Variable Campus-Specific Institution Type Index Mobility Index Selectivity Index
Campus mix (score sending pattern)n/a•••
Level of college choice 1–6•n/an/an/a
Preferred college size••••
Preferred college type•••
Intended major (7 groups)••
Preferred distance home to campus••
Preferred tuition•
No tuition preference•
No college in mind•
Scores sent to comm. college•

Student Characteristic Variables
Variable Campus-Specific Institution Type Index Mobility Index Selectivity Index
Miles home to campus•n/an/an/a
Planned work hours in college••••
Family income•••
Involvement science••
Involvement athletics••
Involvement music•
No HS code listed•