What you’ll learn in this article…
- Concept map students scored 29.3 points higher on IV knowledge tests.
- Partial eta squared of 0.651 far exceeds the 0.14 large-effect benchmark.
- Layer mapping after demonstration; grade cross-links and reasoning, not appearance.
Does adding concept maps to IV catheterization instruction actually change what students know? A randomized trial run in Türkiye in 2024 and published in BMC Nursing suggests it can: concept maps boost nursing students' intravenous catheterization knowledge. Among 66 first-year nursing students, those who added concept map-based reflective learning to standard instruction scored an adjusted 29.3 points higher on the post-test than controls.
The problem it speaks to is familiar. Peripheral IV insertion is among the first invasive procedures students learn, and a demonstration alone can leave misconceptions about asepsis, site selection, and complications intact.
The trial measured written knowledge at one site, so treat it as a strong signal, not a verdict on hands-on competence.
What the Randomized Trial Found About Concept Maps and IV Catheterization Knowledge
Every nurse educator weighing nurse educator teaching strategies faces the same tradeoff: curriculum hours are finite, and anything you add has to displace something else. The evidence that makes that trade worth it has to be better than "students seemed to like it." A cluster-randomized trial from Türkiye, published in BMC Nursing, offers exactly that kind of evidence for concept mapping in peripheral IV catheterization teaching.1
The design in plain language
The trial ran between May and July 2024 and enrolled 66 first-year nursing students, split evenly into an intervention group of 33 and a control group of 33. Both groups received the standard peripheral IV catheterization instruction the program already delivered. The intervention group received one addition: concept map-based reflective learning sessions, which are active learning strategies layered on top of that instruction.
Allocation was by cluster randomization rather than individual assignment. In a classroom setting, that means intact groups of students (sections, lab cohorts) were randomized as units. This is often the only practical approach in education research, because students in the same lab talk to each other, and individually randomizing them invites contamination between arms. Educators planning their own classroom studies should note that choice; it is a realistic model for a teaching trial.
What the numbers showed
Students completed a demographic form and knowledge tests before and after the educational period. The analysis used independent- and paired-samples t-tests plus ANCOVA, with Cohen's d and partial eta squared reported as effect sizes.
ANCOVA is the key test here. Rather than simply comparing final scores, it compares post-test performance after statistically adjusting for how much each group already knew at baseline, so the comparison is not distorted by one group starting ahead. After that adjustment, the intervention group scored significantly higher: an adjusted mean difference of 29.3 points (95% CI 23.9 to 34.7), F(1,63) = 117.43, p < 0.001, with partial eta squared of 0.651.1
What it does and does not establish
The published summary does not spell out how many concept-mapping sessions students attended, how long each ran, how maps were constructed, or how reflection was facilitated. Nor does it detail the knowledge test's item count, scoring range, or psychometric properties. Those gaps matter if you want to replicate the protocol faithfully.
What the trial does support is a narrow, actionable claim: adding a structured mapping and reflection step on top of existing lecture and demonstration improved knowledge scores. The authors frame concept map-based reflective learning as a supplement to conventional instruction, not a substitute for it. That is the version worth bringing to your curriculum committee.
Reading the Numbers: A 29.3-Point Gap and a Partial Eta Squared of 0.651
In the Türkiye trial of 66 first-year nursing students (33 intervention, 33 control), the concept map group outscored controls on the post-test by an adjusted 29.3 points (95% CI 23.9-34.7), with F(1,63) = 117.43 and p < 0.001. In plain English, adding concept map reflection accounted for about 65 percent of the post-test variance left after baseline scores were factored out. That is more than four times the 0.14 cutoff educational researchers typically treat as a large effect, but it comes from one small, single-site trial, so read it as a strong signal rather than a settled benchmark.
Limits of the Evidence: What One Small Trial Does Not Tell Us
Before you reshape a curriculum around one striking number, read the trial for what it is: a single-site study of 66 first-year students that measured written knowledge, not hands-on skill. A higher knowledge score is encouraging, but it is not evidence of cleaner cannulation, fewer failed sticks, better aseptic technique at the bedside, or stronger clinical judgment. Those outcomes were never tested. Treat the result as a hypothesis worth pursuing locally, not as proof that concept maps make safer IV starters.
Why the effect may shrink on replication
Very large effects in small educational trials have a habit of deflating when other teams repeat them with bigger, more varied samples. Part of the gap here is also plain time on task: the intervention group spent extra structured time reflecting on the procedure that the control group did not. Some of the improvement may reflect more engaged practice rather than the mapping method itself. A well-designed replication would need to equalize instructional time to isolate what the maps actually add.
What the broader literature does and does not settle
Reviews of concept mapping in nursing lean positive but carry their own caveats. A 2025 systematic review and meta-analysis pooled 44 studies (roughly 3,400 participants) and reported a favorable educational-performance effect, though the review does not clearly pin down its effect metric or its heterogeneity, which limits how confidently you can read the pooled figure. An earlier 2017 meta-analysis of 11 trials found a moderate benefit for critical thinking (standardized mean difference 0.68, 95% CI 0.26 to 1.11), but with substantial heterogeneity (I-squared of 77%), meaning results varied widely across studies.1 No review in this body of work establishes a clean, separate pooled estimate for nursing students' knowledge or clinical performance.
Justifying the curriculum time honestly
You can defend adding concept maps without overselling them. Frame them as low-cost, low-risk innovative teaching strategies layered on top of your existing lecture, demonstration, and lab, not a replacement for any of it. Then commit to measuring locally: pre- and post-knowledge scores, lab checkoff pass rates, documented complications in simulation, and student ratings of the exercise. Collect that data for a term or two before you expand. Honest framing plus a small local study is far more persuasive to a curriculum committee than a single impressive effect size from abroad.
How to Create a Nursing Concept Map for a Psychomotor Skill: A Worked IV Catheterization Example
Build the map in four passes: place the skill (peripheral IV catheterization) at the center, brainstorm the nodes students must master, connect them with labeled linking phrases such as "increases risk of" or "prevents", then add a "what could go wrong" layer that ties each step to its complications. Grade the links as heavily as the nodes, because a phrase like "wet antiseptic increases risk of contamination" shows reasoning that a bare list of boxes never will. Anchor every node to the CDC guidelines for preventing intravascular catheter-related infections or the Infusion Nurses Society (INS) Infusion Therapy Standards of Practice, and pair it with a misconception prompt so students can surface errors during reflection, before they reach a patient.
| Map node | What to include | Sample linking phrase | Misconception prompt for students |
|---|---|---|---|
| Indication and catheter selection | Select the catheter according to its intended purpose and duration of use, known infectious and noninfectious complications (including phlebitis and infiltration), and the operator's experience (CDC guidelines). | Therapy purpose and duration "determine" catheter choice | Is the smallest available catheter always appropriate, regardless of the therapy's purpose, duration, or complication risk? |
| Patient assessment: adult site selection | Use an upper-extremity site for adult insertion. If a lower-extremity site is used, replace it with an upper-extremity site as soon as possible (CDC guidelines). | Lower-extremity placement "requires" early site change | Is a lower-extremity site equally preferred for routine adult peripheral IV insertion? |
| Vessel and site risk | In adults, prefer radial, brachial, or dorsalis pedis sites over femoral or axillary sites to reduce infection risk (CDC guidelines). | Femoral or axillary site "increases risk of" infection | Does a convenient femoral or axillary site have the same infection-risk profile as a radial, brachial, or dorsalis pedis site? |
| Skin antisepsis | Prepare clean skin before peripheral venous catheter insertion with an antiseptic such as 70% alcohol, tincture of iodine, or an alcoholic chlorhexidine gluconate solution (CDC guidelines). | Skin antisepsis "prevents" introduction of skin flora | Can the catheter be inserted immediately after applying antiseptic, before the site has dried? |
| Chlorhexidine-alcohol preparation | CDC specifies a greater-than-0.5% chlorhexidine preparation with alcohol for central venous and peripheral arterial catheter procedures. If chlorhexidine is contraindicated, tincture of iodine, an iodophor, or 70% alcohol may be used instead (CDC guidelines). | Contraindication to chlorhexidine "leads to" an alternative antiseptic | Does the greater-than-0.5% chlorhexidine-with-alcohol recommendation apply identically to every peripheral venous catheter insertion? |
| Hand hygiene and aseptic technique | Let the antiseptic remain on the insertion site and air-dry before insertion. Do not touch the prepared site unless aseptic technique is maintained (CDC guidelines). | Repalpating the prepared site "increases risk of" contamination | Is wiping off wet antiseptic or repalpating the prepared site with an unsterile finger acceptable before insertion? |
| Insertion and securement | Use securement as an adjunct to the primary dressing to reduce catheter motion and related complications. Evaluate tissue adhesive or an integrated securement device when appropriate, particularly for difficult access or prolonged dwell (INS Infusion Therapy Standards of Practice). | Securement "reduces" catheter motion, which "contributes to" complications | Is the transparent primary dressing alone always sufficient to prevent catheter motion and complications? |
| Evaluation: site assessment | Evaluate the site daily by palpating through the dressing for tenderness and inspecting it when a transparent dressing is in place. Leave gauze or opaque dressings in place when there are no clinical signs of infection; remove an opaque dressing for visual inspection when tenderness or other possible catheter-related bloodstream infection signs appear (CDC guidelines). | Local tenderness "triggers" dressing removal and inspection | Should an opaque dressing be routinely removed every day even when the patient has no tenderness or other infection signs? |
| Complications: phlebitis and infiltration | Factor known complications such as phlebitis and infiltration into catheter choice alongside therapy, duration, and operator experience, and assess for tenderness and other local changes during ongoing site surveillance (CDC guidelines). | Ongoing surveillance "detects" early phlebitis or infiltration | If an IV continues to infuse, does that rule out infiltration or phlebitis? |
| Adult catheter replacement | For adults, CDC states there is no need to replace peripheral catheters more often than every 72 to 96 hours to reduce infection and phlebitis risk. CDC makes no recommendation on replacing adult peripheral catheters only when clinically indicated (CDC guidelines). | Replacement interval "is linked to" infection and phlebitis risk | Does CDC require every adult peripheral IV catheter to be replaced routinely before 72 hours? |
| Pediatric catheter replacement | Replace peripheral catheters in children only when clinically indicated (CDC guidelines). | Clinical indication "determines" pediatric replacement | Should a child's peripheral IV be replaced on a fixed routine schedule even when it remains clinically appropriate? |
Concept Map vs. Care Plan vs. Mind Map vs. Clinical Judgment Map
These four tools are often used interchangeably in syllabi, but they do different jobs, and that confusion makes grading harder. A skill-based concept map belongs after demonstration as a reflective step layered on top of supervised practice, never in place of it. A recent review found that both concept-map-based and traditional care plans improved critical thinking, so choose the format that fits your learning goal.
| Dimension | Skill-based concept map | Nursing care plan | Mind map | Clinical judgment map |
|---|---|---|---|---|
| Plain definition | A diagram of a procedure's key concepts joined by labeled links that explain how each idea relates to the next. | A written plan that applies the nursing process to one patient's problems, goals, interventions, and evaluation. | A free-form sketch that branches associated ideas out from a single central topic. | A case-based diagram that traces how a nurse moves from patient cues to decisions, actions, and outcome evaluation. |
| Primary purpose | Organize and connect knowledge around a skill (for example, aseptic technique, site selection, and complications for peripheral IV insertion). | Document and direct individualized care for a specific patient. | Brainstorm, recall, or preview a topic quickly. | Make clinical reasoning visible so faculty can see how a student prioritizes and responds. |
| Structure | Hierarchical and linked, with general concepts at the top, specifics below, and labeled cross-links. | Linear or columnar, following nursing process steps in order. | Radial and free-form, usually without labeled linking phrases. | Linked and sequential, organized around cues, hypotheses, actions, and outcomes. |
| Patient-specific or skill-specific | Skill-specific; the same map applies to any patient receiving the procedure. | Patient-specific. | Neither by design; topic-driven. | Patient-specific; tied to a real or simulated case. |
| Typical use in nursing education | Reflective activity after skills lab demonstration, during simulation prep, or in debriefing. | Clinical rotation assignments; some programs now build care plans on a one-page concept map format. | Lecture openers, study sessions, and early brainstorming before structured work. | Clinical post-conference, case studies, and preparation for next-generation licensure items. |
| Theoretical anchor | Novak's concept mapping and meaningful learning theory. | The nursing process (assessment, diagnosis, planning, implementation, evaluation). | General note-taking and visual brainstorming techniques. | The NCSBN Clinical Judgment Measurement Model; some programs also use Tanner's Clinical Judgment Model. |
| Relationship to hands-on practice | An add-on that deepens understanding after demonstration and supervised practice; it does not verify psychomotor competence. | Guides care that is then delivered and evaluated at the bedside. | A study aid with no direct link to skill performance. | Reflects on or prepares for patient care; competence is still judged in clinical or simulation settings. |
| What a strong example shows | Accurate concepts, meaningful labeled links, and correct cross-links such as asepsis connected to infection risk. | Diagnoses supported by assessment data and interventions clearly matched to outcomes. | Broad coverage of related ideas, even without explaining relationships. | Correctly prioritized cues, defensible hypotheses, and actions linked to expected outcomes. |
Integrating Concept Maps Into Skills Lab, Simulation, and Debriefing
The trial in Türkiye layered concept mapping on top of standard peripheral IV instruction rather than swapping it in. That framing matters for how you build the sequence: mapping is a reflection step that surfaces what students are thinking, not a replacement for your demonstration or their hands-on repetitions.
A Timing Sequence That Fits a Lab Day
Reflection works best when students revisit the same map across the session instead of drawing it once. A workable rhythm:
- Pre-lab draft: Before you demonstrate, students sketch what they already know about site selection, aseptic technique, and complications. Expect gaps and misconceptions here, and that is the point.
- Revision after demonstration: Students add or correct nodes once they have watched the full procedure modeled.
- Revision after practice: After their own repetitions on a task trainer, they mark where their hands disagreed with their earlier map (vein palpation, angle of insertion, flash confirmation).
- Final revision after debrief: Following a clinical judgment simulation lab session, students update links one last time.
Budget roughly 20 to 30 minutes of total mapping time spread across these touchpoints, not a single long block. Pairs tend to beat solo work in the drafting and practice stages, where talking through a disagreement exposes faulty reasoning. Reserve individual maps for graded checkpoints where you need to see each student's own understanding.
Using the Map in Debrief
The debrief is where mapping earns its place. Ask students to lay their map beside what actually happened in the scenario and physically mark the nodes or links they would change: a complication they missed, an aseptic break they did not anticipate, a connection between patient history and vein choice they drew too weakly. The marked map becomes a record of reasoning that shifted, which is more useful to you than a clean final diagram. It also gives quieter students a concrete artifact to speak from instead of recalling the scenario cold.
Online and Hybrid Delivery
None of this requires a physical lab. Shared digital canvases let pairs co-edit a single map in real time, and you can watch revisions happen live. For asynchronous courses, have students post their pre-lab map, then post a revised version after reviewing recorded demonstrations, with a short written note on what changed and why. In synchronous virtual sessions, breakout rooms mirror the pair work: two or three students revise one map together, then the whole group compares maps during debrief.
Throughout, keep the emphasis on reflection layered onto solid instruction, which is the condition under which the trial saw its large knowledge gains.
How to Grade Nursing Concept Maps Without Rewarding Pretty Diagrams
In Novak-Gowin structural scoring, a single valid cross-link is worth 10 points while an individual proposition earns 1 point, each hierarchy level earns 5, and each example earns 1. That weighting is the whole argument against grading on appearance: the scheme pays students for connecting aseptic technique to infiltration risk, not for drawing fifty tidy boxes.
Pick a scoring model and say which one you are using
Two families dominate. Structural scoring counts propositions, hierarchy levels, cross-links, and examples, and it draws its content-validity rationale directly from concept-mapping theory. Relational or holistic scoring judges the accuracy and clinical meaning of the links as an integrated whole: coherence, organization, completeness, and whether the map would hold up at a bedside. The two operationalize different things and can rank the same maps differently, so pick deliberately. Most nursing programs end up with an analytic rubric blending both, scoring hierarchy, accuracy, cross-links, logical relationships, and care-plan completeness. Be aware that through 2026 there is no single universally validated nursing rubric, no agreed weighting, and no accepted reliability threshold.
What the reliability evidence actually supports
Reported agreement is encouraging but heterogeneous, and the figures are not interchangeable because raters, rubric adaptations, and statistics differ. Published kappa values for structural categories run from 0.738 for propositions to 0.875 for hierarchy and 1.0 for examples and cross-links. West and colleagues found structural inter-rater reliability of 0.65 before rater instruction and 0.84 after it, with predictive validity at p = 0.004. One nursing scoring procedure reports 0.99, and an adapted pathophysiology rubric reports 95% overall agreement. The practical lesson is the jump from 0.65 to 0.84: rater training moves the number. Before a cohort's maps are graded, have every grader score the same three or four sample maps independently, then reconcile line by line until you agree on what counts as a cross-link.
Spotting polish without reasoning, and responding to unsafe links
A shallow map has many nodes and few labeled linking phrases, textbook wording copied verbatim, a clean radial layout, and no cross-links reaching over to complications, patient factors, or safety checks. Ask one question of any handsome map: where does site selection connect to phlebitis risk? If nothing crosses, the score should reflect it.
When a link is wrong or unsafe (saline flush before confirming placement, say), do not simply subtract points. Flag the link, write a reasoning question beside it, and require a revised map. Students learn from the revision, not the deduction.
Run the first two or three mapping assignments as low-stakes formative work. Misconceptions about vein selection and sterile field only surface if exposing them is not expensive, and surfacing them early is the point.
A Sample Concept Map Rubric for Nursing Students
This rubric adapts the scoring approaches discussed above into one grid you can drop into an IV catheterization unit or any psychomotor skill. It is a starting point you will need to pilot and calibrate with your own faculty, not a validated instrument. Accuracy and linking carry the most weight, and any unsafe link (for example, one that skips hand hygiene or treats a complication as harmless) sends the map back for revision regardless of the total score.
| Dimension | Suggested weight | What proficient looks like | Red flag |
|---|---|---|---|
| Accuracy of content and safety | 30% | Every concept and relationship is clinically correct. Aseptic technique, site assessment, securement, and complication monitoring appear and are stated safely. Any unsafe link triggers mandatory revision before a grade is recorded. | Steps copied from a skills checklist with no safety rationale, or a single link that would lead to unsafe practice if a student acted on it. |
| Quality of linking phrases | 25% | Arrows carry specific verbs that explain the relationship, such as "reduces risk of," "is assessed by," or "signals need to stop." A reader could rebuild the reasoning from the links alone. | Bare arrows, or vague connectors like "relates to" and "leads to" repeated throughout the map. |
| Hierarchy and organization | 15% | The skill sits at the top with broad phases (preparation, insertion, maintenance, complications) branching to more specific concepts. The layout makes priorities obvious. | A flat list of boxes arranged in procedure order with no levels, or a decorative layout that hides which concepts matter most. |
| Cross-links and integration | 15% | Meaningful links connect separate branches, for example site selection to infiltration or phlebitis risk, or patient condition to catheter choice. Each cross-link is labeled and explained. | No cross-links, or links drawn between branches with no label or explanation of why the concepts connect. |
| Reflection on misconceptions | 15% | A brief written reflection names at least one idea the student held before the session, explains how the map changed it, and states what they will do differently at the bedside. | Generic statements such as "I learned a lot" with no specific misconception, correction, or next step. |
Related Articles
Concept mapping started at Cornell University in 1972, when Joseph Novak's team needed a way to show how children's science understanding changed over time. Nursing research on maps appeared around 1992. Because the technique was built to expose relationships, the linking words between boxes carry the reasoning, not the boxes themselves.
Adapting Concept Maps for Medication Administration, Wound Care, Urinary Catheterization, and Sepsis Recognition
Eight branches carry almost any psychomotor skill: indication, assessment, equipment, technique, complications, evaluation, documentation, and Patient Teaching Methods in Nursing. That skeleton is what makes concept mapping portable. Once students have built one map for peripheral IV insertion, the second map costs them far less cognitive effort, because they are filling a familiar frame with new content rather than inventing a structure under time pressure.
Name the High-Risk Branch for Each Skill
Every skill has one branch where errors do the most harm, and that branch should be visually dominant on the map: more sub-nodes, more cross-links to assessment and evaluation, and an explicit "if this fails, then what" chain.
- Medication administration: the rights of medication are the anchor branch, with cross-links from assessment (allergies, renal function, baseline vitals) and evaluation (therapeutic effect versus adverse effect).
- Wound care: aseptic technique dominates, branching into field setup, dressing selection by wound bed characteristics, and signs of infection under complications.
- Urinary catheterization: CAUTI prevention is the spine, linking insertion technique to drainage system maintenance, daily necessity review, and removal criteria.
- Sepsis recognition: early warning signs replace technique as the central branch, with nodes for vital sign trends, mentation change, lactate and culture timing, and escalation pathway.
Build in Misconception Prompts
The reflective step is where the mapping work earns its curriculum time. Give students two or three prompts per skill that must be answered somewhere on the map, in their own words, with a link drawn to the relevant node.
- Medication administration: Does a scanned barcode confirm the right dose? What makes a verbal order unsafe to accept? Why does "two identifiers" exclude room number?
- Wound care: Is clean technique ever acceptable for a chronic wound, and who decides? Does a wound that smells always mean infection?
- Urinary catheterization: Why is incontinence alone not an indication? Does a bag below bladder level matter if the tubing loops?
- Sepsis recognition: Can a patient be septic with a normal temperature? Why is a rising respiratory rate often the first clue?
Students who answer these on paper surface their errors where you can see them, which is the entire point.
Scale Slowly
Add one mapped skill per course unit, not one per week. A single map per unit keeps grading to a manageable volume, gives you time to return substantive feedback on the linking phrases, and lets you compare maps across a term to watch reasoning mature. Faculty who assign a map for every nursing simulation lab day usually end up grading for completion, which drains the strategy of the feedback value that makes it work.
Grade the reasoning, not the artwork. A hand-drawn map that explains why a 20-gauge catheter in the forearm fits this patient beats a color-coded diagram that only names the steps.
Tools, Accessibility, and Piloting Your Own Classroom Study
Which concept mapping tool should you hand students, and how do you turn a single lab activity into evidence you can actually report? Tool choice matters less than how you build in accessibility and how you measure the result.
Picking a Tool: Paper, Free Digital, or LMS-Adjacent
Start cheap and work up. Paper and whiteboards cost nothing, need no logins, and work for every student, which is why many faculty still begin there.
- CmapTools: Free for academic use, but it installs locally on a PC and its HTML export strips out the nesting that carries meaning. Full functionality generally assumes recipients also run CmapTools.
- Lucidchart: Free plan allows 3 editable documents with 60 shapes each and 100 templates; paid starts around $7.95 per user per month, and a premium education license may be available through a qualifying college email.1
- Miro: Free plan includes 3 boards (or a 14-day trial); paid starts near $8 per user per month. Strong for group workshops.1
- Canva: Unlimited free mind maps and nursing-oriented templates on Canva concept maps; premium starts around $144 per user per year.1
- MindMeister: Free for 3 maps, but exports, advanced customization, and integrations sit behind paid tiers.1
None of these tools is independently verified to support LTI launch, roster sync, submission, or grade passback across both platforms, so plan to collect maps by upload or share link and grade manually.
Build In Accessibility From the Start
Spatial maps can exclude students who use screen readers or keyboard-only navigation. Vendor accessibility claims are not independently verified here, so do not assume conformance. Offer a text-based outline or table that mirrors the map's structure, check color contrast, avoid encoding meaning in color alone, and always accept a paper or verbal map as an equivalent submission.
Piloting Your Own Study
The Türkiye trial gives you a usable model. Assign whole lab sections (not individuals) to a concept-map condition or a standard-instruction condition, administer the same knowledge test before and after, and compare post-test scores adjusted for baseline. Even a small internal pilot can justify curriculum time.
Two cautions before you publish. First, anything beyond classroom quality improvement typically requires IRB review and informed consent, so check with your institution early. Second, that trial measured knowledge only. Pair your test with a validated skills checklist or simulation rubric so you capture whether better maps translate into safer catheter insertion, not just better recall.
