Link to current text
PSD.15:3 - Forces
| Force | Tension |
|---|
| Professional continuity and change | Familiar ways preserve skill and comparability; an incumbent can also hide a recurring failure. |
| Plurality and usable choice | Several Methods may be warranted, but an undifferentiated list shifts all selection work to the next practitioner. |
| Generality and representative conditions | Reuse needs stable guidance; participation, power, values, evidence and authority vary across engagements. |
| Experiment and protected interests | Trials can improve practice, but participants and receiving decisions must not bear unbounded methodological risk. |
| Method and supporting arrangement | Tools, expertise and organizational conditions affect performance without necessarily changing the reusable way. |
| Lineage and present warrant | Provenance makes a variant recoverable; it does not establish fit, effectiveness or cultural uptake. |