Table 3.

. | Florida . | North Carolina . | ||
---|---|---|---|---|

. | Math . | Reading . | Math . | Reading . |

Standard deviation, in test scores | 0.10 | 0.07 | 0.14 | 0.11 |

Standard deviation, in weeks of schooling | 7.4 | 7.3 | 10.3 | 11.3 |

. | Florida . | North Carolina . | ||
---|---|---|---|---|

. | Math . | Reading . | Math . | Reading . |

Standard deviation, in test scores | 0.10 | 0.07 | 0.14 | 0.11 |

Standard deviation, in weeks of schooling | 7.4 | 7.3 | 10.3 | 11.3 |

*Notes:* Standard deviations, calculated in student-level test-score standard deviations, are calculated as square root of variances reported in columns 2 and 5 of tables 1a and 1b. These statistics are converted to weeks of schooling by dividing by 0.485 in math and 0.36 in reading (the average learning gain for fourth- and fifth-grade students reported by Hill et al. [2008]) and multiplying by 36 (the number of weeks in a typical 180-day school year).

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