Timeline for Why has the time spent studying declined so sharply in the United States over the the past few decades?
Current License: CC BY-SA 3.0
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| Jan 11, 2016 at 9:22 | comment | added | ff524 | The article seems clear to me; it says that the data comes from time-use surveys which "asked students to report the number of hours per week they spend studying outside of class." This answer doesn't seem relevant. | |
| Jan 11, 2016 at 9:14 | history | answered | Kevin Keane | CC BY-SA 3.0 |