Here's an example of what's due today

Reaction-time lab

Mon, Mar 22, 2027 · Week 10 · Human Anatomy & Physiology (Human Body Systems)

Today's goal: Measure reaction time under different conditions and record the data.

Learn first

What a finished product looks like

This is a model of the work you should turn in today. Use it to check your own: match the structure and the level of detail, do not copy it. Your data and wording should be your own.

Reaction-time data table
Completes: A reaction-time data table recording multiple trials in a baseline and a distraction condition with units, condition averages computed, and any outliers flagged with a note.

Method: ruler-drop, distance converted to time in milliseconds. Five trials per condition.

Baseline condition (no distraction):

  • Trial 1: 210 ms
  • Trial 2: 195 ms
  • Trial 3: 205 ms
  • Trial 4: 380 ms (flagged outlier: fumbled catch, excluded)
  • Trial 5: 200 ms

Baseline average (excluding outlier): 202.5 ms

Distraction condition (counting backward aloud):

  • Trial 1: 265 ms
  • Trial 2: 280 ms
  • Trial 3: 255 ms
  • Trial 4: 270 ms
  • Trial 5: 260 ms

Distraction average: 266 ms

Which was slower: the distraction condition was slower by about 63.5 ms.

TrialBaseline (ms)Distraction (ms)
1210265
2195280
3205255
5200260
Average202.5266
Reaction-time data table comparing baseline and distraction conditions across trials with averages of 202.5 ms and 266 ms; the fumbled trial 4 baseline outlier is excluded.

Also due today: Submit your completed data table.

Check yourself

WebXam problem for today's skill

One exam-style question that uses exactly what you practiced today. Try it before you reveal the answer, then read why each choice is right or wrong.

WebXam-style domain: Evaluate Body SystemsSelf-check skill: Collecting reliable reaction-time data and handling outliers
While running a ruler-drop reaction-time test, a student fumbles and clearly misses one catch, giving a value far higher than the others. What is the best way to handle this trial for a valid condition average?

Tap an answer to see the full explanation. Nothing is recorded or graded.