Response analysis CER

Open your materials, follow the steps, then turn in your work.

Students write a CER evaluating their triage and stabilization decisions against patient outcomes.

2. Start the work

State a claim about whether the triage order optimized patient outcomes.

Show all 5 required steps
  1. State a claim about whether the triage order optimized patient outcomes.
  2. Cite assessment data and triage categories as evidence.
  3. Explain reasoning that connects each decision to its outcome.
  4. Recommend one change to improve the response protocol.
  5. Identify assumptions and limitations from the simulation.

Lost your place? Lost your place? Make sure you have stated a claim about your triage order (step 1), cited assessment data and tags as evidence (step 2), explained the reasoning linking decisions to outcomes (step 3), recommended one protocol change (step 4), and named your assumptions and limitations (step 5).

Check your work before submitting

  • Write a CER evaluating triage decisions with simulation evidence.
  • Recommend an improvement and state at least one limitation.

3. Turn in your work

DueCheck Schoology
Hand in
CER evaluating the simulation triage order, citing decision-log evidence, connecting decisions to outcomes, recommending one protocol improvement, and stating simulation limitations.
How to submit and name your file

Use the submission route shown on today's today's page.

In Schoology, open your course and the assignment for this lesson. Attach your file, select Submit, and check that it appears in the submission.

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Find this lesson's Schoology assignments

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How this lesson connects

Keep using what you learned last class: Teams that follow a shared SOP with fixed roles tag and stabilize more patients under pressure, because assigned scope and a repeatable order prevent the missed assessments and duplicated effort that improvising produces. Today: You evaluate a triage decision against the logged evidence and the information you had, not against the final outcome, because outcomes depend partly on severity and chance, so only the evidence-based review reliably points to the next protocol improvement.

Print or open for todayActivity 3.2.4 Crisis Communication

Check you have the right sheet: the top of it prints today's portal day, Response analysis CER. The PLTW activity itself is in myPLTW and is not posted here.

Unit 4 extra creditNine items, any order, turn one in any day. Read the cover sheet first.Cover sheet (6 pages)See all nine
Optional: listen or watch a unit review
Optional unit study notebook
Emergency response and triage: first-response systems, prioritizing patients, and drug delivery.
Open the notebook
Optional review video
Audio overviewVideo overviewMind mapStudy guideFlashcardsQuizData table
Need help? Warm-up, timing, and directions

💡 Big idea: You evaluate a decision against the logged evidence and the information you had, not against the final outcome, because outcomes depend partly on severity and chance, so only the evidence-based review reliably points to the next protocol improvement.

  1. 0-8 minReview Wednesday decision log: identify the decision you are most and least confident in.
  2. 8-20 minWrite the claim: one sentence stating whether the order optimized patient outcomes.
  3. 20-42 minWrite evidence: cite specific patient tags, assessment data, and timing from the log.
  4. 42-58 minWrite reasoning: connect each decision to its patient outcome.
  5. 58-70 minAdd protocol improvement recommendation and simulation limitations section.
  6. 70-80 min: confirm claim takes a position, evidence is decision-log specific, limitation is stated.
Mr. Mendoza's 5-minute intro
  • Yesterday you made decisions under time pressure; today you audit those decisions honestly.
  • Your CER claim should take a position: did the order optimize outcomes or not? Not 'it went okay.'
  • The improvement recommendation is the part that makes this CER useful: it closes the learning loop.
  • Simulation limitations remind readers that the conclusion may not transfer directly to a real mass-casualty event.
Know by the end
  • A CER evaluating uses the decision log as data: specific patient tags and timing are the evidence.
  • A protocol improvement recommendation must be specific and tied to a decision that did not go as planned.
  • Simulation limitations affect the generalizability of conclusions: name at least one that could change the outcome in a real event.

PLTW connection and today's work

In myPLTW, open Lesson 3.2 Emergency Response and go to Activity 3.2.4 Crisis Communication. Use it as the scaffold for your CER.

Today's stopping point: Platform prompts done in first 10 minutes; full CER submitted before end of period.

PLTW activity titles identify the course connection. If your account will not open, use the posted materials for today and tell Mr. Mendoza. Do not mark an online activity complete unless you completed it.

Course connection

  • Activity 3.2.4 Crisis Communication
Open Activity 3.2.4 Crisis Communication in myPLTW

Use the turn-in directions at the top of this page. Do not create a second submission unless your teacher asks for one.

Show another explanation or a smaller first step

Need help? Choose a starting point

Need a running start
Before writing, restate the CER structure in one line each: claim is your judgment, evidence is the logged data, reasoning is why the data supports the judgment.
On track
Write a CER that judges whether your triage order optimized outcomes, cites specific tags and timings from your log as evidence, and recommends one concrete protocol change tied to a decision that went wrong.
Stuck? Get unstuck
If the CER stalls, fill three sentences: 'I claim our triage order was ___ because ___ (cite one tag or time), and next time we should ___.' Then add one simulation limitation.
Push me further
Argue whether your recommended protocol change would still help in a real event with real physiological feedback, or whether a simulation limitation makes it untrustworthy evidence.
Lesson resources: reading, slides, and vocabulary
Socratic teaching slide deck

The deck carries the prior idea forward, lets you inspect an analogy, maps the rule to biology, and ends with the same evidence decision and exit ticket used on this page.

Generated from this lesson's canonical data with a red-team citation check.

Carry forward

Teams that follow a shared SOP with fixed roles tag and stabilize more patients under pressure, because assigned scope and a repeatable order prevent the missed assessments and duplicated effort that improvising produces.

Daily take-home

You evaluate a decision against the logged evidence and the information you had, not against the final outcome, because outcomes depend partly on severity and chance, so only the evidence-based review reliably points to the next protocol improvement.

Inspect the analogy

A research team lays out its question, variables, controls, sampling plan, measurement record, and analysis before deciding what the data support.

  1. Which variable is changed or compared?
  2. Which conditions and measurements must stay consistent?
  3. Which conclusion is inside the study's evidence boundary?
Rule

Define variables, controls, sampling, units, and the analysis plan before interpreting a result; analysis cannot repair biased or inconsistent measurement.

Where it breaks

A well-organized classroom study can still be limited by , measurement quality, confounding, and the population represented.

Map the analogy to biology
  • Question and variable cards map to the study design.
  • Control and measurement cards map to fair, reproducible data collection.
  • The conclusion card maps to a bounded claim supported by the analysis.
Read this first

Driving question: Your decision log shows you tagged one patient yellow who later crashed. Was your order actually the best call given what you knew at the time, and what one change would you make so it does not happen again?

What you already know: Teams that follow a shared SOP with fixed roles tag and stabilize more patients under pressure, because assigned scope and a repeatable order prevent the missed assessments and duplicated effort that improvising produces.

New idea: You evaluate a decision against the logged evidence and the information you had, not against the final outcome, because outcomes depend partly on severity and chance, so only the evidence-based review reliably points to the next protocol improvement.

Visual or model: F1. F1. A lesson illustration or teaching diagram for Response analysis CER. Use it with E1-E3; it is a model or context image, not experimental or patient data. What to notice: Trace the labeled observation or evidence sequence before choosing an explanation.

  1. Observe or measure the relevant feature in response analysis CER.
  2. Organize the observation with a stable evidence ID.
  3. Apply this rule: Define variables, controls, sampling, units, and the analysis plan before interpreting a result; analysis cannot repair biased or inconsistent measurement.
  4. Choose the option the evidence supports and state the limit of the conclusion.

Real biomedical example: Your decision log shows you tagged one patient yellow who later crashed. Was your order actually the best call given what you knew at the time, and what one change would you make so it does not happen again?

What the evidence supports: E1-E3 and F1 support the daily take-home when the response meets the stated success criteria.

What it cannot prove: The package does not support claims beyond this lesson's or any real patient diagnosis.

Vocabulary:
  • : Sorting patients so that limited staff, time, and supplies do the most good. In everyday emergency care that usually means the most urgent first, but in a mass-casualty event it means treating those who benefit most, which is not always the most badly injured.
  • : The emergency care that keeps a patient's vital functions steady, such as breathing and circulation, so their condition does not worsen before further treatment.
  • : Heavy or uncontrolled bleeding from a damaged blood vessel, either outside the body or internally into tissues, that can become life-threatening.
  • : All the chemical reactions in the body that build up or break down molecules, releasing or storing the energy needed to stay alive.
  • dose: The measured amount of a drug or substance given at one time, chosen to be effective while staying safe for the patient.
  • protocol: A detailed, step-by-step set of instructions for carrying out a procedure the same way every time so results can be trusted and repeated.
  • : A sudden rise in patients that strains a healthcare system beyond normal capacity, as during a disaster, outbreak, or mass-casualty event.

Use it now: Choose one decision option. Cite E1 and E3, then explain how the rule connects the evidence to your choice.

Go further, optional: The source links below are optional enrichment. Every fact required for today's local evidence decision appears in this lesson package.

Evidence set and decision
E1 · Source fact

Biomedical evidence supports a conclusion only to the level allowed by the measurement, comparison, controls, source quality, and uncertainty in the investigation.

Limit: The classroom evidence supports the stated learning decision, not a real clinical diagnosis, causal conclusion, or treatment recommendation.

E2 · Teaching model

Define variables, controls, sampling, units, and the analysis plan before interpreting a result; analysis cannot repair biased or inconsistent measurement.

Limit: A well-organized classroom study can still be limited by , measurement quality, confounding, and the population represented.

E3 · Task criterion

Write a CER evaluating decisions with simulation evidence.

Limit: E3 defines the classroom product or success criterion. It is not independent scientific evidence and cannot justify a clinical or causal claim.

PLTW-PBT-2026-12-07 · Simulated classroom evidence scenario

Your role: biomedical investigator

Decision: Your team must decide what the evidence from response analysis CER supports before submitting the claim-evidence-reasoning response named on today's page.

  • Place the mobile unit where people already struggle to reach a clinic, since deployment location decides who actually gets care.
  • Send the unit downtown where the most sick people already are, because helping the largest number at once is fairest.
  • Find out who downtown goes without care once the unit moves, since nobody has measured that burden yet.

Response: State one choice, cite at least two evidence IDs, explain the rule that connects them, and add one limitation. Submit it as the claim-evidence-reasoning response.

Claim ceiling: Today's evidence supports a classroom claim about response analysis CER. It cannot prove causation, diagnose a real patient, or justify action outside this room.

Composite case file · PLTW-PBT-2026-12-07

Reason for review: Your team must decide what the evidence from response analysis CER supports before submitting the claim-evidence-reasoning response named on today's page.

Context: Grading your own decisions against recorded evidence, not against how you felt, is what turns one messy event into a better protocol for the next one.

Timeline:
  • T1: State a claim about whether the order optimized patient outcomes.
  • T2: Cite assessment data and categories as evidence.
  • T3: Explain reasoning that connects each decision to its outcome.
  • T4: Recommend one change to improve the response protocol.
  • T5: Identify assumptions and limitations from the simulation.
Evidence records:
  • E1: Biomedical evidence supports a conclusion only to the level allowed by the measurement, comparison, controls, source quality, and uncertainty in the investigation.
  • E2: Define variables, controls, sampling, units, and the analysis plan before interpreting a result; analysis cannot repair biased or inconsistent measurement.
  • E3: Write a CER evaluating decisions with simulation evidence.

Measurements: Use only the measurements, units, graph, or counts supplied in today's task. No additional patient measurement is implied.

Figure finding: Teaching diagram for Response analysis CER. Trace the labeled observation or evidence sequence before choosing an explanation. This is a teaching model, not patient or experimental data.

Uncertainty: This is a composite classroom scenario. Missing history, measurements, or confirmation tests remain unknown and limit the conclusion.

Math moment
Formula or setup

Mean = sum of values / number of values. Median = middle ordered value. Range = maximum - minimum.

Worked parallel example

For 2, 4, 4, and 10: mean = 20 / 4 = 5, median = 4, and range = 10 - 2 = 8.

Units and reasonableness

Mean, median, and range keep the measurement unit. Order the values before finding the median.

Try it with today's data

Calculate the requested summary for today's supplied values, then write what it reveals and what it hides.

Watch the trap

Students often think Students judge whether a decision was good by whether the patient ended up okay, so a good outcome means a good decision.. The trap: That is the trap. A patient can survive despite a poor call or die despite a correct one, because outcomes also depend on injury severity and chance. A CER evaluates the decision against the evidence and information available at the time, not just the final outcome.

Worked example · a parallel case (guides, does not reveal)
Worked CER on a parallel case
Completes: A parallel worked response-analysis CER for a different emergency scenario: it judges whether a bystander CPR and AED response optimized the outcome, cites a timed action log, recommends one specific protocol change, and states limitations. Use it as a format-and-depth model, not as an answer to today's triage prompt.

Worked CER on a parallel case (bystander CPR and AED response). This models the format and depth PLTW expects. It is NOT about today's triage question, so use it only to see how a strong response-analysis CER is built.\n\nClaim: Our bystander response mostly optimized the outcome, but we lost about a minute of chest compressions while searching for the AED, and that pause was the weakest part of our response.\n\nEvidence (from our action log): We confirmed the collapsed adult was unresponsive and not breathing normally at 0:20 and started compressions at 0:40. The log shows compressions stopped at 2:10 when one responder left to find the AED, and they did not restart until the AED arrived and analyzed the rhythm at 3:15. That is a gap of roughly 65 seconds with no compressions.\n\nReasoning: The chain of survival depends on high-quality, minimally interrupted compressions, because every pause lets blood flow to the brain and heart fall back toward zero. The guideline is to send a second person for the AED while the first keeps compressing, so circulation never stops. By having the only compressor leave to get the AED, we broke that rule and created exactly the kind of long pause the protocol is designed to prevent.\n\nRecommended protocol change: Assign AED retrieval to a named second bystander before compressions begin, so the person doing compressions never has to stop to go get the device. This is specific and tied to the exact decision that cost us time.\n\nAssumptions and limitations: This was a manikin drill with a training AED, so the pause had no real physiological cost and the manikin could not actually deteriorate. In a real cardiac arrest the same 65-second gap could meaningfully lower the chance of survival, which is why the change matters even though the drill still ended in a clean save.

Why this matters

This model shows the level of evidence and organization needed to complete: A parallel worked response-analysis CER for a different emergency scenario: it judges whether a bystander CPR and AED response optimized the outcome, cites a timed action log, recommends one specific protocol change, and states limitations. Use it as a format-and-depth model, not as an answer to today's triage prompt.

Build yours step by step
  1. Write one defensible claim.
  2. Choose specific evidence that supports the claim.
  3. Explain the scientific rule that connects the evidence to the claim.
Change it for a new task

Keep the structure. Replace the question, facts, measurements, and evidence. Then recheck units, vocabulary, and whether the conclusion goes beyond the evidence.

Also due today: Submit your CER on Schoology before end of period.

See the full worked example
Portal terms
CER:
Claim, Evidence, Reasoning: make a claim, back it with evidence, explain your reasoning.
SOP:
Standard Operating Procedure, the exact steps to follow (especially in a lab).
Tracker:
Your PLTW progress log where you record completed evidence.
myPLTW:
The PLTW course site where you do the online activities. Find it in Clever with your Microsoft sign-in, right next to Schoology.
This unit's vocabulary
/muh-TAB-uh-liz-um/

Tap the speaker to hear a term. Add two of these to your notebook glossary with a definition and an example in your own words.

Build your vocabulary · optional, for extra credit

Pick just 2 or 3 words from today and make them yours: write what each one means in your own words, name the context clue or evidence that helped, then give one example from what you actually did in Response analysis CER. Try your own words first; the glossary is there if you get stuck. This is voluntary and counts as extra credit, so keep it short.

triage
stabilization
hemorrhage
metabolism
dose
protocol

Saved on this device. Show Mr. Mendoza or add these to your notebook glossary to claim the extra credit.

Resources & readings

Hand-picked readings and interactives for this lesson, from authoritative open organizations and PLTW's own public course outline.

Practice: try a question, then check your answer

Claim ceiling for this check: Today's evidence supports a classroom claim about response analysis CER. It cannot prove causation, diagnose a real patient, or justify action outside this room.

Quick self-check · commit, then reveal

A team tagged a patient correctly by protocol, but that patient still died. In a CER, is that automatically evidence of a bad decision? Explain.

How sure are you?

Write an answer and pick a confidence to unlock the key.

Cumulative WebXam review · flash practice

Fast retrieval with instant answers, not the commit-then-reveal check above. Try each from memory first: write what you remember about the earlier units, then check yourself here.

Tap an answer to check it · nothing is recorded or graded
[Review: New to the Practice: building a new-patient diagnostic workup] When synthesizing several test results into a recommendation, what makes the recommendation most defensible?
[Review: Nosocomial Nightmare: the chain of infection and how to break it] During plating, why is a face shield considered user PPE rather than sample PPE?
[Review: Outbreak Evidence: line lists, epidemic curves, and identifying the agent] To confirm the causative agent of a foodborne outbreak, what evidence is most definitive?
To properly clean up a concentrated hydrochloric acid spill, you should:
Missed class or ready for more?
🔬 Pre-lab simulation

Run this before you touch the bench. It is built from the real lab procedure, so the decisions you make here are the ones you will make with the equipment in your hands.

Medicine and Poison Are the Same Molecule
Open the simulation →
Where this leads: careers
What to do if you were absent
If YOU are absent

Today is individual work you can do from home: complete the same target above, then submit your CER.

FOR A GRADE
Open Schoology

Go to Schoology to turn this in. Submit one PDF. Put your first and last name in the document header. Name the file: FirstName LastName - Assignment Title - YYYY-MM-DD.pdf. If you cannot get in, see Mr. Mendoza. Do not skip the work.

If MR. MENDOZA is absent

Class still runs. Complete the online activity above (it's self-guided). Need the concept taught without a teacher? Use this authoritative explainer:

Ready.gov: know what to do in an emergency
Optional extra credit (async)

You've passed Unit 2, so the optional extra-credit track is open. Complete reserved-unit work from home, including virtual labs, for extra credit. Each item shows its correct submission route.

Open the extra-credit track
How this is graded
For: CER: CER evaluating the simulation triage order, citing decision-log evidence, connecting decisions to outcomes, recommending one protocol improvement, and stating simulation limitations.
  • Complete
    Every required part of the artifact is present, nothing left blank.
  • Accurate
    The science and the data are correct and match the evidence.
  • Scientific reasoning
    You explain your claim with evidence and reasoning (CER), not just an answer.
  • Professional communication
    Clear, organized, labeled, and written the way a clinician or scientist would.
  • Submitted
    Go to Schoology to turn this in. Submit one PDF. Put your first and last name in the document header. Name the file: FirstName LastName - Assignment Title - YYYY-MM-DD.pdf. If you cannot get in, see Mr. Mendoza. Do not skip the work.