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Data Collection Exit Ticket
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Data Collection Exit Ticket
Read each experiment carefully. Identify the groups, what is being measured, and why fair comparisons matter.
Identify the Groups
1.At a fire station, 24 firefighters take a recall test after studying a list of emergency codes. Twelve study with soft background music, and twelve study in quiet. Which group is the control group?
- The firefighters who study with music
- The firefighters who study in quiet
- All 24 firefighters together
- The people who score the tests
2.In the fire-station recall study, which group is the experimental group?
- The firefighters who study with music
- The firefighters who study in quiet
- Both groups together
- Neither group
Compare Experimental Setups
3.Nia tests whether a new alert-light pattern helps firefighters notice a signal faster. One crew uses the new pattern; another uses the usual pattern. Identify the control group, the experimental group, and the outcome Nia should measure.
4.Gabriela compares two ways of practising emergency radio messages. One team practises with a new checklist, while another practises with the standard instructions. What is the control group, and what is the experimental group?
5.Hiroshi wants to find out whether a new warm-up improves the accuracy of a hose-target drill. He assigns 20 firefighters to each group. Describe what each group should do and name the data to collect.
6.Why should the two teams in Hiroshi’s drill have the same number of attempts and similar practice time?
7.A fire station tests a new hydration reminder. One group receives the reminder during a shift; the other group does not. What should the station compare to judge whether the reminder made a difference?
8.In a study of a new practice schedule, the control group uses the usual schedule and the experimental group uses the new schedule. Explain why having a control group helps interpret the results.
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