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Table 5 Item percent correct, averaged across countries and across items

From: The TIMSS 2019 Item Equivalence Study: examining mode effects for computer-based assessment and implications for measuring trends

Grade/subject

Average percent correct across countries and items

paperTIMSS

eTIMSS

Difference

Fourth grade

 Mathematics

53.7 (18.1)

50.1 (18.0)

3.6 (6.0)

 Science

53.1 (17.9)

51.3 (17.5)

1.7 (6.0)

Eighth grade

 Mathematics

47.4 (19.1)

44.0 (18.5)

3.4 (5.3)

 Science

49.6 (18.4)

48.1 (18.5)

1.5 (5.7)

  1. ( ) Standard deviations appear in parentheses. Standard deviations of item percent correct were computed across items in each country and then pooled across countries. Because of rounding some results may appear inconsistent
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