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| Table 108. | Student proficiency in reading, by percentile and age: 1971 to 1996 |
_______________________________________________________________________________________________
Percentile | 1971 | 1975 | 1980 | 1984 | 1988 | 1990 | 1992 | 1994 | 1996
______________|________|________|________|________|________|________|________|________|________
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10
______________|________|________|________|________|________|________|________|________|________
| 9-year-olds
|________________________________________________________________________________
Average ......| 207.6 | 210.0 | 215.0 | 210.9 | 211.8 | 209.2 | 210.5 | 211.0 | 212.4
Standard | | | | | | | | |
deviation | 42.1 | 38.6 | 37.9 | 41.1 | 41.2 | 44.7 | 40.3 | 40.5 | 40.5
|________|________|________|________|________|________|________|________|________
Percentiles | | | | | | | | |
5th ........| 134.8 | 143.2 | 148.5 | 140.5 | 141.9 | 134.8 | 140.7 | 140.1 | 141.8
10th .......| 151.6 | 159.2 | 165.1 | 156.7 | 156.7 | 150.1 | 156.0 | 155.6 | 157.6
25th .......| 180.0 | 185.2 | 191.1 | 183.7 | 184.3 | 178.7 | 183.1 | 184.1 | 185.0
50th .......| 209.3 | 211.9 | 217.2 | 212.6 | 213.7 | 210.3 | 213.6 | 214.8 | 215.5
75th .......| 236.7 | 236.9 | 241.3 | 239.6 | 240.1 | 240.3 | 239.3 | 240.0 | 241.4
90th .......| 260.5 | 258.1 | 261.7 | 262.8 | 263.0 | 265.7 | 259.9 | 260.1 | 261.5
95th .......| 274.1 | 270.6 | 273.3 | 276.5 | 277.5 | 280.4 | 272.1 | 271.7 | 274.1
|________|________|________|________|________|________|________|________|________
| 13-year-olds
|_________________ ______________________________________________________________
Average ......| 255.2 | 255.9 | 258.5 | 257.1 | 257.5 | 256.8 | 259.8 | 257.9 | 259.1
Standard | | | | | | | | |
deviation | 35.7 | 35.8 | 34.9 | 35.5 | 34.7 | 36.0 | 39.4 | 39.8 | 38.4
|________|________|________|________|________|________|________|________|________
Percentiles | | | | | | | | |
5th ........| 192.8 | 193.5 | 199.1 | 196.7 | 199.5 | 195.7 | 190.9 | 188.2 | 191.5
10th .......| 207.8 | 208.7 | 212.8 | 210.2 | 212.9 | 209.8 | 207.9 | 205.1 | 208.5
25th .......| 232.3 | 232.9 | 235.3 | 233.9 | 234.2 | 233.2 | 234.7 | 232.5 | 234.8
50th .......| 257.0 | 257.7 | 259.6 | 258.2 | 257.9 | 257.3 | 261.6 | 260.1 | 261.2
75th .......| 279.9 | 280.6 | 282.8 | 281.6 | 281.4 | 281.5 | 287.0 | 285.2 | 285.5
90th .......| 299.6 | 300.5 | 302.3 | 301.7 | 301.6 | 302.0 | 309.2 | 307.4 | 306.5
95th .......| 310.8 | 311.8 | 313.9 | 313.7 | 313.7 | 314.4 | 321.9 | 320.3 | 319.4
|________|________|________|________|________|________|________|________|________
| 17-year-olds\1\
|________________________________________________________________________________
Average ......| 285.2 | 285.6 | 285.5 | 288.8 | 290.1 | 290.2 | 289.7 | 288.1 | 286.9
Standard | | | | | | | | |
deviation | 45.8 | 44.0 | 41.8 | 40.3 | 37.1 | 41.3 | 43.0 | 44.4 | 42.3
|________|________|________|________|________|________|________|________|________
Percentiles | | | | | | | | |
5th ........| 206.1 | 209.3 | 213.0 | 219.9 | 226.1 | 220.0 | 214.3 | 210.8 | 213.2
10th .......| 225.3 | 228.4 | 230.6 | 236.0 | 241.5 | 236.9 | 232.7 | 230.0 | 231.4
25th .......| 255.9 | 257.8 | 258.7 | 262.5 | 265.7 | 263.5 | 262.6 | 259.8 | 259.1
50th .......| 287.7 | 287.9 | 287.5 | 290.3 | 291.1 | 291.1 | 293.0 | 289.9 | 288.2
75th .......| 316.7 | 315.7 | 314.6 | 316.8 | 316.0 | 318.6 | 319.4 | 318.7 | 315.8
90th .......| 341.7 | 340.0 | 337.5 | 339.6 | 336.9 | 342.7 | 342.7 | 343.0 | 340.4
95th .......| 356.5 | 354.3 | 350.9 | 352.6 | 348.7 | 356.0 | 355.8 | 357.7 | 354.4
______________|________|________|________|________|________|________|________|________|________
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\1\All participants of this age were in school.
NOTE.--These test scores are from the National Assessment of Educational Progress (NAEP). The NAEP scores have been evaluated at certain performance levels. A score of 300 implies an ability to find, understand, summarize, and explain relatively complicated literary and informational material. A score of 250 implies an ability to search for specific information, interrelate ideas, and make generalizations about literature, science, and social studies materials. A score of 200 implies an ability to understand, combine ideas, and make inferences based on short uncomplicated passages about specific or sequentially related information. A score of 150 implies an ability to follow brief written directions and carry out simple, discrete reading tasks. Scale ranges from 0 to 500. SOURCE: U.S. Department of Education, National Center for Education Statistics, National Assessment of Educational Progress, NAEP 1996 Trends in Academic Progress, by Educational Testing Service. (This table was prepared September 1997.)
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