# RE2 · Later source and own blank

Unused prediction recheck, later stage. **Only after the first response is captured.** This page repeats the complete first contract and adds the next constructed record. It must be a separately selected later delivery, never a combined learner download or preview with the first stage.

## Complete later source

Four bean seedlings in each group start at the same recorded height. The fictional plan assigns different potting-mix types: A assigned mix P; B assigned mix Q; their composition is not supplied. It specifies the same seed variety/stage, container size, other scheduled conditions and daily check time. Actual light level, temperature, moisture and whether the schedule was followed are not recorded. These are **constructed teaching observations**, not an actual controlled trial, care prescription or instruction to alter living things. Every supplied mean includes all four initially labelled height records; no height is missing. The survival count is separate.

| Day after start | A mean height (mm) | B mean height (mm) |
| ---: | ---: | ---: |
| 0 | 12 | 12 |
| 3 | 16 | 16 |
| 6 | 19 | 19 |

At Day 6 the fictional recorder marked **3 of 4 alive in A** and **4 of 4 alive in B**. These counts are at that check, not lifetime survival. Heights are the mean of all four originally labelled recorded heights, including those not marked alive; do not silently change the mean denominator to survivors only. No record beyond Day 6 is supplied.

## Your later job

1. Calculate both Day 0-to-Day 6 mean height increases, with unit and six-day period. Compare the actual constructed Day 6 mean heights.
2. Look at your captured prediction. Keep or revise it in light of this record, explaining which evidence mattered. If you predicted uncertainty, state what is now known and what remains unknown. Do not rewrite the first response as if you knew this outcome.
3. State the two alive-at-Day-6 counts separately from height change. Explain why neither measure establishes health, later survival or a universal condition rule.
4. Give one specific method/condition limit, a relevant further question and one improved future measurement/control rule. Describe the paper plan as planned; no actual equipment use, test, field permission or causal finding follows from supplied numbers.

## Your own later blank record

```text
A SIX-DAY INCREASE / WORKING / UNIT: _______________________
B SIX-DAY INCREASE / WORKING / UNIT: _______________________
DAY 6 RELATIVE MEAN HEIGHT: _______________________________
FIRST PREDICTION (quote/point to saved work): _______________
KEEP / REVISE / WHAT NEW EVIDENCE MATTERED: _________________
A ALIVE COUNT / ORIGINAL SAMPLE / CHECK TIME: ______________
B ALIVE COUNT / ORIGINAL SAMPLE / CHECK TIME: ______________
LIMIT / FURTHER QUESTION / IMPROVED RULE: __________________
ACTUAL OR SUPPLIED OR PLANNED: ____________________________
```

The complete table/text is the literal no-picture alternative. Original source/task © NeuroForgeIO Pty Ltd 2026, CC BY 4.0; future delivery requires complete portable notices. No educator model or answer is part of this page.