Practical retest: instrument checks and trial 1
instrument-check record
BLANK empirical form. Use one copy for each group/phase, or attach a clearly identified teacher-recorded check for your exact probes. Follow the instrument-check directions on the Instruments and Trial Order page. Keep before and after values. This checks consistency and response, not calibration.
1. Record group/date/phase and check-record ID; probe A/B maker/model/IDs; teacher-checked immersion/response instructions and required wait; classroom air instrument ID/location. Record any supplied maker accuracy information as stated, or “not available”; do not infer it from display resolution.
BLANK empirical form; °C readings, wait in seconds; second read 30 s after first.
Blank empirical instrument-check record; no readings supplied.
Check water | A read1 °C | B read1 °C | A read2 °C | B read2 °C | Wait s |
|---|---|---|---|---|---|
Before: room | ________ | ________ | ________ | ________ | ________ |
Before: cool | ________ | ________ | ________ | ________ | ________ |
After: room | ________ | ________ | ________ | ________ | ________ |
After: cool | ________ | ________ | ________ | ________ | ________ |
Record actual check timestamps, conditions, replacement instrument IDs and action here or on an attached named note. Link every run to its check ID. If instruments are replaced mid-phase, use a new check record and fresh samples.
Retest · trial 1
Blank empirical record. Run R1; reference: original one-sheet sleeve; prototype: declared redesigned sleeve. Use the fresh-pair procedure and instrument-check directions on the Instruments and Trial Order page. Record °C exactly as displayed; never invent a missing reading.
1. Record group/date; cup and sensor IDs/left-right positions; cover and sleeve condition; measured mL each; common-batch temperature; probe response interval; linked instrument-check record ID (instrument-check record).
BLANK empirical record; minutes and °C, actual timestamps required.
Blank empirical recording form: no readings supplied.
Target min | Actual clock | Reference °C | Prototype °C | Room °C | Notes |
|---|---|---|---|---|---|
0 | ________ | ________ | ________ | ________ | ________ |
5 | ________ | ________ | ________ | — | ________ |
10 | ________ | ________ | ________ | ________ | ________ |
2. Record changes, late/missing readings, wet materials, spills or movement, even if the result looks surprising. Mark usable, flagged or failed start; give a reason. Record any fresh replacement run with a new ID.