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______________________________________________________________________________________ Selected | 9-year-olds | 13-year-olds | 17-year-olds* characteristics |________________|_____________________|___________________ of students | 1977 | 1990 | 1977 | 1990 | 1977 | 1990 ___________________________|________|_______|__________|__________|_________|_________ All students ........... 220 229 247 255 290 290 Sex Male ..................... 222 230 251 259 297 296 Female ................... 218 227 244 252 282 285 Race/ethnicity White, non-Hispanic ...... 230 238 256 264 298 301 Black, non-Hispanic ...... 175 196 208 226 240 253 Hispanic ................. 192 206 213 232 262 262 Region Northeast ................ 224 231 255 257 296 293 Southeast ................ 205 220 235 251 276 284 Central .................. 225 234 254 260 294 300 West ..................... 221 230 243 253 287 286 Type of community Extreme rural ............ 225 233 245 249 289 294 Disadvantaged urban ...... 181 209 216 227 256 254 Advantaged urban ......... 242 241 268 268 304 305 Other .................... 220 229 247 259 291 293 Parental education Not high school graduate . 199 210 224 233 265 261 Graduated high school .... 223 226 245 247 284 276 Some college ............. 237 238 260 263 296 297 Graduated college ........ 232 236 266 268 309 306 Type of school Public ................... 218 228 245 254 288 289 Private .................. 235 237 268 269 308 308 ____________________________________________________________________________________*/Excludes persons not enrolled in school.
NOTE: The NAEP scores range from 0 to 500, but have been evaluated at certain performance levels. A score of 300 implies the ability to evaluate the appropriateness of the design of an experiment and the skill to apply scientific knowledge in interpreting information from text and graphs. These students also exhibit a growing understanding of principles from the physical sciences. Performers at the 250 level can interpret data from simple tables and make inferences about the outcomes of experimental procedures. They exhibit knowledge and understanding of the life sciences, and also demonstrate some knowledge of basic information from the physical sciences. Performers at the 200 level are developing some understanding of simple scientific principles, particularly in the life sciences. Performers at the 150 level know some general scientific facts of the kind that can be learned from everyday experiences.
SOURCE: U.S. Department of Education, National Center for Education Statistics, National Assessment of Educational Progress, Trends in Academic Progress, prepared by Educational Testing Service.