Test Scores & The Time of Day

Pacific Standard: “As it turns out, each hour that passes before starting a test drags scores down by a little bit, meaning students who take a test late in the day will perform noticeably worse.” A study by economists Hans Henrik Sievertsen, Francesca Gino, and Marco Piovesan “analyzed scores from every student who took the Danish National Tests between the 2009–10 and the 2012–13 school years … Tests were given in three parts, presented to each student in random order, and lasted throughout the day, with breaks around 10 a.m. and noon.”

“Percentile rankings, which show where students rank on a 100-point scale, declined by about two-tenths of a point per hour on average, though how much scores dropped—and whether they dropped at all—changed throughout the day. Students who took a test at 9 a.m., for example, ranked 1.35 points lower than those who were tested on the same material at 8 a.m. Ranks increased 0.37 points after a 10 a.m. break, but dropped again by 0.58 points for tests taken at 11 a.m.”

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