NSC data cannot be used alone to calculate two-year credential-type completion rates because 57.5 percent of completion records have a blank credential name field¶
Claim · All claims
Evidence · 1 study · associationalr2·q2
Currency · newest study 2020 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2023: tool and model accuracy changes quickly
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q2 i? For 57.5 percent of two-year college completion records in the NSC sample the credential name field was blank, and 80.4 percent of students with uncategorizable NSC completions had earned an associate degree per ICCB records. → Jenny Nagaoka and Shelby Mahaffie 2020
Evidence¶
Jenny Nagaoka and Shelby Mahaffie 2020¶
Jenny Nagaoka and Shelby Mahaffie. (2020). Tracking Two-Year College Outcomes: Comparing National Student Clearinghouse and Illinois Community College Board as Sources of Two-Year College Data. Technical Paper, University of Chicago Consortium on School Research. https://consortium.uchicago.edu/publications/tracking-two-year-college-outcomes
q2 · i? · associational · r2
Cross-tabulation of credential-type completion outcomes between ICCB and NSC data for 3,660 immediate enrollees (Table 4). ICCB showed a 14.1 percent associate degree completion rate versus 3.7 percent identifiable in NSC, demonstrating that NSC data alone cannot accurately calculate credential-type completion rates.
"we see that 324 of the 403 students (80.4 percent) whose highest completion was a completion of uncategorizable type according to the NSC data had earned an associate degree according to the ICCB data."
Discussion¶
Related Claims¶
- NSC and ICCB data agree on any-credential completion within four years for 96 percent of immediate two-year enrollees — related
- NSC and ICCB data agree on immediate two-year college enrollment for about 96 percent of students, with ICCB showing a slightly higher enrollment rate — related
- Full-time immediate two-year enrollment rates differ substantially between ICCB and NSC data, suggesting limited reliability of the NSC full-time status field — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
nsc-cannot-calculate-credential-type-rates |
title |
NSC data cannot be used alone to calculate two-year credential-type completion rates because 57.5 percent of completion records have a blank credential name field |
description |
NSC data cannot be used alone to calculate two-year credential-type completion rates because 57.5 percent of completion records have a blank credential name field |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2020 |
recheck_by |
2023 |
generated |
by process:wiki-ingest on 2026-10-09 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — jenny-nagaoka-and-shelby-mahaffie-2020 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.