JiTT implementation was associated with a decreased DFW rate in Contemporary Biology, from 27% to 20%¶
Claim · All claims
Evidence · 1 study · designr2·q2
Currency · newest study 2004 · not yet checked against its sources · not reviewed by a person
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? Since implementing JiTT in Contemporary Biology, the DFW rate decreased from 27% to 20%, meaning 80% of students completed with A, B, or C. → Marrs 2004
Evidence¶
Marrs 2004¶
Marrs, K.A., and Novak, G. (2004). Just-in-Time Teaching in Biology: Creating an Active Learner Classroom Using the Internet. Cell Biology Education 3, 49–61. https://doi.org/10.1187/cbe.03-11-0022
q2 · i? · design · r2
Course-level retention comparison reported for Contemporary Biology N100 before and after JiTT implementation. The article reports the DFW rate "decreased from 27% to 20%"; no statistical test or effect size is printed. A parallel physics figure (33% to 19%) is also reported.
"Since implementing JiTT in contemporary biology, the DFW rate has decreased from 27% to 20%; mean- ing that 80% of the students taking N100 will now complete the course with a grade of A, B, or C."
Discussion¶
Related Claims¶
- Optional 'What is Biology Good For?' essays achieved >75% weekly participation and >90% of students reported they made science relevance clear
- Students self-reported less cramming and more class preparation in the JiTT course than in their non-JiTT courses, except students receiving D or F grades
- Test questions reinforced by Warm Up questions or Cooperative Learning activities showed higher average normalized gains (~52%, ~60%) than questions discussed in class only (~15%)
- Students rated class discussions of Warm Up responses as very useful (87%, n = 485) — related
- Cooperative learning exercises were rated highly useful by >94% of students and were associated with roughly doubled class attendance — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
jitt-decreased-dfw-rate-n100 |
title |
JiTT implementation was associated with a decreased DFW rate in Contemporary Biology, from 27% to 20% |
description |
JiTT implementation was associated with a decreased DFW rate in Contemporary Biology, from 27% to 20% |
status |
review |
evidence_strength |
weak |
newest_evidence |
2004 |
generated |
by process:wiki-ingest on 2026-10-16 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — marrs-2004 |
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