Postulated experimental causes of variability, grouped as correlated between-experiment (affecting μa and μi similarly in each experiment), uncorrelated between-experiment (affecting μa and μi independently in each experiment), or within-experiment (affecting σa and/or σi)
| | Between experiment | Within experiment | |
|---|---|---|---|
| | Correlated | Uncorrelated | |
| Missing or erroneous LJP correction | ✓✓ | ✗ | ✗ |
| Uncontrollable redox potentials | ? | ? | ✓ |
| Voltage-control errors | ✓ | ✓ | ✓ |
| Voltage protocol | ✓ | ✓ | ✗ |
| Analysis method | ✗ | ✓ | ✓ |
| Bath and pipette solutions | ✗ | ✓ | ? |
| Temperature | ? | ✗ | ? |
| Time since rupture | ? | ? | ? |
| Stretch | ✗ | ✗ | ? |
| Culture conditions and passage number | ? | ? | ? |
| Endogenous currents | ? | ? | ? |
| Regulation | ? | ? | ? |
| | Between experiment | Within experiment | |
|---|---|---|---|
| | Correlated | Uncorrelated | |
| Missing or erroneous LJP correction | ✓✓ | ✗ | ✗ |
| Uncontrollable redox potentials | ? | ? | ✓ |
| Voltage-control errors | ✓ | ✓ | ✓ |
| Voltage protocol | ✓ | ✓ | ✗ |
| Analysis method | ✗ | ✓ | ✓ |
| Bath and pipette solutions | ✗ | ✓ | ? |
| Temperature | ? | ✗ | ? |
| Time since rupture | ? | ? | ? |
| Stretch | ✗ | ✗ | ? |
| Culture conditions and passage number | ? | ? | ? |
| Endogenous currents | ? | ? | ? |
| Regulation | ? | ? | ? |
Characterized as strongly likely (✓✓), likely (✓), possible (?), or unlikely (✗) to contribute to the different types of variability in measurements of μa and μi.
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