The Relationship Among Time Spent Reading, Reading Achievement and Vocabulary Acquisition of Fifth Graders

Percentile Rank on Standardized Test

Minutes of Independent Reading Outside of School Per Day

Estimated Exposure to Number of Words Per Year

98

90.7

4,733,000

90

40.4

2,357,00

70

21.7

1,168,000

50

12.9

601,000

20

3.1

134,000

10

1.6

51,000

Anderson, R., Wilson P. & Fielding, L (1988). Growth in Reading and How Children Spend Their Time Outside of School. Reading Research Quarterly, Vol. 23: pp. 285-303