Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT03584490 · ClinicalTrials.gov registry record · NA
Reducing Assessment Barriers for Patients With Low Literacy
A NA study, sponsored by Northwestern University.
- Completed
- Registry status
- NA
- Development phase
- 729
- Enrollment target
NCT03584490: Completed NA study, sponsored by Northwestern University.
NCT03584490 is a NA study that has completed, run by Northwestern University. The registered enrollment target is 729 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (48% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03584490, a NA study, has completed, sponsored by Northwestern University.
- COMPLETED
- Registry status
- NA
- Development phase
- 729 participants
- Enrollment target
Study Summary
The purpose of this study is to determine the effects of health literacy on questionnaire-based measurement.
Primary Outcome
A primary outcome of this study will be the degree of DIF in NIH PROMIS questionnaire Anxiety subscale observed across adequate versus low health literacy. The outcome will be measured by a McFadden pseudo-R-square (R2), which captures the degree to which health-literacy group determines probability of response type for each item. The pseudo R2 is an analogue to R2 used in linear regression. For DIF analysis, each scale is normalized to a theta metric (mean = 0, standard dev. = 1 by definition).
Interventions
- OTHER Computerized Talking Touchscreen
- OTHER Phone Administration of Questionnaires
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 729 participants |
| Start Date | 2018-09-14 |
| Est. Completion | 2023-07-31 |
| Phase | NA |
What the finished NCT03584490 record still lists
NCT03584490 is an interventional study that assigns participants to a tested intervention. The registered 729 participants enrollment target is mid-sized for trials with a published cap, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (48% lower).
The record links to 0 conditions, and to 2 interventions - of which Computerized Talking Touchscreen is the first listed.
NCT03584490 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03584490 about?
NCT03584490 is a clinical study titled "Reducing Assessment Barriers for Patients With Low Literacy". The purpose of this study is to determine the effects of health literacy on questionnaire-based measurement.
What is the current status of trial NCT03584490?
This trial is currently completed. It is a NA study. The enrollment target is 729 participants. The study started on 2018-09-14. Estimated completion is 2023-07-31.
What interventions are being tested in trial NCT03584490?
The interventions under investigation include: Computerized Talking Touchscreen (OTHER), Phone Administration of Questionnaires (OTHER).
Who is sponsoring clinical trial NCT03584490?
This trial is sponsored by Northwestern University, which has 1,209 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03584490's enrollment target sits among peer trials
729 145th of 2000 higher than 1,856 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar enrollment target
- NCT03232918 · 730 participants · Phase 4
Oxytocin and Fetal Heart Rate Changes
- NCT05548283 · 730 participants · Phase 4
Standardizing Treatments for Pulmonary Exacerbations - Aminoglycoside Study
- NCT07312162 · 730 participants
Multilevel Determinants of Socioeconomic Disparities in Geographic Late-Stage Hepatocellular Carcinoma Hotspots
- NCT05065216 · 728 participants · Phase 2
Treatment of Acute Ischemic Stroke (ReMEDy2 Trial)
Similar registry start date
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia
- NCT07125183 · started 2026-12 · Phase 2
Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma
- NCT07292298 · started 2026-11 · Phase 2
Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates
- NCT04263285 · started 2026-10 · NA
Treatment of Depression Post-SCI