293 bytes added,
14:07, 15 December 2015 {{Infobox model parameter
| name = S2s
| param = <onlyinclude>''S<sub>s</sub><sup>2</sup>''</onlyinclude>
| desc = The order parameter for the slower motion of the Clore et al., 1990 extended model-free theory.
}}
[[Category:Model-free analysis]]
[[Category:Model-free parameters]]