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Types of Scores Reported

Stanford 9
For each school, district, county and for the state, the following types of scores are reported by grade level and content area:

  • NPR (national percentile rank) for "AVG" Student estimates the national percentile rank for a hypothetical average student in this group. This is a calculated score similar to an average daily temperature. The number printed is the percentage of students in a national sample of students tested in the same grade at the same time of year that answered the same number or fewer test questions correctly.
  • % Scoring Above 75th NPR is the percent of students in this group that scored above where 75% of the students in the national sample scored. If this group looked like the national sample, this number would be 25. A number greater than 25 indicates that the group had scores better than the national sample. A number less than 25 indicates that the group did not do as well as the national sample.
  • % Scoring At or Above 50th NPR is the percent of students in this group that scored at or above where 50% of the students in the national sample scored. This is the percentage of students who are considered as scoring at or above their grade level on this test.
  • % Scoring Above 25th NPR is the percent of students in this group that scored above where 25% of the students in the national sample scored. If this group looked like the national sample, this number would be 75.

Mean scaled score is the group average scaled score for each grade and content area. A scaled score is a number that the test publisher uses to calculate other scores. A table is used to convert the number of questions each student answered correctly to a scaled score. The scaled scores can then be averaged and used to look up other scores.

California Standards Tests
  • Average Number Correct out of Total Number Possible is the total number of questions the students in this group answered correctly divided by the number of students in the group.
  • Percent correct is the Average Number Correct divided by the number of questions.
  • The number possible varies by grade and content area:
    • The grade 2 and 3 English language arts tests have 75 questions each that include 35 questions written specifically to address the California English language arts content standards plus 40 Stanford 9 questions selected for their match to the California content standards. The grade 4 - 11 tests each have 90 questions including 35 questions written specifically for California plus 55 Stanford 9 questions.
    • The grade 2 - 7 mathematics tests are 65 item tests comprised of 50 questions written specifically to address California's content standards for each grade and 15 Stanford 9 questions that were identified as foundation skills for the California content standards. The grade-11 and course specific mathematics tests each have 65 questions that were developed specifically to address California's mathematics content standards for algebra I, geometry, algebra II, and 1st, 2nd, and 3rd year integrated mathematics courses.
    • The science tests are 60 item tests comprised of questions written specifically to address California's content standards for earth science, biology, chemistry, and physics.
    • o The history-social science tests are 60 item tests comprised of questions written specifically to address California's history-social science content standards.
  • Performance Levels for English Language Arts
    During February 2001, the State Board of Education adopted five performance levels to better describe how well students are achieving the California English language arts content standards as measured by the standards tests. The five levels are far-below basic, below basic, basic, proficient, and advanced. The state target is to have all students achieve the proficient and advanced levels. Schools and districts are expected to provide additional assistance to students scoring at and below the basic levels. The number and percent of students with scores in the score range for each performance level are reported. The table below presents the number of questions students needed to answer correctly on the California English Language Arts Standards Test for each grade level to have their scores assigned to each performance level.
Grade
Level
of
Test
Far Below Basic Below Basic Basic Proficient Advanced
2 0-25 26-38 39-54 55-65 66+
3 0-25 26-38 39-53 54-64 65+
4 0-26 27-38 39-58 59-72 73+
5 0-27 28-38 39-58 59-72 73+
6 0-29 30-41 42-60 61-73 74+
7 0-32 33-45 46-62 63-74 75+
8 0-32 33-44 45-61 62-73 74+
9 0-30 31-42 43-59 60-72 73+
10 0-29 30-43 44-62 63-74 75+
11 0-30 31-43 44-59 60-71 72+
  • Writing Test Scores
    The grade 4 and 7 writing tests were each scored by two-independent readers. Readers assigned each paper a score of 1 - 4 with 4 being high or indicated that the paper was unscorable for one of the following reasons:
    • T = Off topic-the student wrote on something other than the assigned task
    • I = Illegible-the paper was so poorly written that the readers could not decipher it
    • L = Language-the paper was written in a language other than English
    • B = Blank-the student did not respond to the assigned task

    The summary scores reported are the number and percent of students with papers assigned a total of 2 - 8 points. The score used is the sum of the points assigned by the two readers. The following table presents all possible score combinations. If the two readers assigned scores that were not identical or adjacent to each other, a third reader scored the essay to resolve the discrepancy.

Reader 1's Score Reader 2's Score Reported Score
4 4 8
4 3 7
3 3 6
2 3 5
2 2 4
2 1 3
1 1 2

SABE/2
For each school, district, county, and the state, the following types of scores are reported by grade level and content area:

RPR (reference group percentile rank) of the "average" student estimates the individual percentile rank of a hypothetical average student in this group. Reference percentiles are similar to the national percentiles used for the Stanford 9, but where the Stanford 9 compares student achievement to a sample of students selected to represent the nation as a whole, the reference group used for the SABE/2 was selected to represent Spanish-speaking students in bilingual classes.

  • % (percent of students) scoring above 75th RP is the percent of students in this group that scored above where 75% of the students in the reference group scored. If this group looked like the reference group, this number would be 25. A number greater than 25 indicates that the group had scores better than the reference group. A number less than 25 indicates that the group did not do as well as the reference group.
  • % (percent of students) scoring at or above 50th RP is the percent of students in this group that scored at or above where 50% of the students in the reference group scored.
  • % (percent of students) scoring above 25th RP is the percent of students in this group that scored above where 25% of the students in the reference group scored. If this group looked like the reference group, this number would be 75.
  • Mean scaled score is the group average scaled score for each grade and content area. A scaled score is a number that the test publisher uses to calculate other scores. A table is used to convert the number of questions each student answered correctly to a scaled score. The scaled scores can then be averaged and used to look up other scores.