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[quote=Anonymous]desirability for of Hardy for high SES IB families with choices is a function of school leadership, school curriculum/offerings/physicalplant etc, number of feeder students, and number of "true" IB students.   All four matter, and the debate is about how much.

Prob of choosing H - A*(sl) + B(SC) + C(F%) + D(IB%)   Where SL is a summary of school leadership factors, SC is  a summary of school offering factors, F% is % from feeders and IB% is a true IB percentage

(SC) is a function of SL ,  lagged.  Feeder percentage is a function of SL and SC, also lagged.  IB% is a function of SL, SC, and F%, all lagged.

SC is ALSO a function of feeder% and IB% as those changes will impact curriculum offerings.  IB% is also a function of lagged IB% (IE previous years IB%)

The interrelationships are why schools flip. The lags are why it takes time.

SL has improved with Pride. SC appears to have improved significantly.   Feeder% is clearly up, though perhaps a bit more slowly than forecast a year ago.  IB% is likely up but there is no data yet.  All these should result in the 2015 feeder and IB% going up even further.   [/quote]

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