CREDO weighs in
CC @RbnLake @MichaelPetrilli @HollyYettick @MrPABruno @chalkbeatDET @freep @ValentinaK_eduhttps://twitter.com/thegrade_/status/748932599222067200 …
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As for the Leona data, I consulted @CREDOatStanford last month to make sure I did not misstate.