Comprehensive or survey version, the Basic Achievement Skills Inventory (BASI™) presents a complete evaluation of academic skills. Convenient tests yield standard scores, national percentile rankings, grade and age equivalency, and performance classification by learning objective.
Comprehensive or survey version, the Basic Achievement Skills Inventory (BASI™) presents a complete evaluation of academic skills. Convenient tests yield standard scores, national percentile rankings, grade and age equivalency, and performance classification by learning objective.
Achilles N. Bardos, PhD
Overview:A versatile, multi-level, norm-referenced achievement test that helps measure math, reading, and language skills for children and adults
Age Range:(BASI Survey): 8:0-80:0
Administration:Paper-and-pencil
Scoring Option:Q™ Local Software, Mail-in Scoring Service, or Manual Scoring
Grade Range:(Comprehensive and Survey): 3-12
RTI Tiers:Survey - 1; Comprehensive - 1 and 2
Completion Time:115 minutes (complete battery); 25 minutes each math and verbal subtests (survey)
Publication Date:2004
Developed by Achilles N. Bardos, PhD, co-author of the GAMA® (General Ability Measure for Adults)test, the BASI series comprises multi-level, norm-referenced achievement tests for children and adults that may be group- or self-administered.
Providing both comprehensive and survey versions, the BASI series helps present a complete evaluation of academic skills. These convenient tests yield standard scores, national percentile rankings, grade equivalency, age equivalency, and performance classification by learning objective—without requiring individual administration or lengthy testing.
Normed during the 2002–03 school year and highly correlated to the leading individually and group-administered achievement and intelligence tests, the BASI series provides a current, valid, and reliable assessment tool.
Use the Comprehensive version:
Use the Survey version:
The comprehensive test is comprised of six timed subtests:
Each of the subtests can be administered independently or in any combination. Total test administration time is just under two hours. The subtests also can be administered untimed to yield criterion-referenced performance information.
The test is organized into four grade-specific levels:
Each level has two forms: Form A has fall norms (Aug.-Dec.) and Form B has spring norms (Jan.–July).
The survey test is a single, brief version of the comprehensive test comprised of a math subtest and verbal subtest, each of which is a 25-minute timed instrument. The subtests can be administered together or independently and are appropriate for grades 3–12 and adults.
The comprehensive version can help:
The survey version can help:
| Less time | Takes only 25 minutes to administer each subtest. |
| Flexibility | Each subtest can be administered independently; test only for the relevant skills. |
| Wide range | The series was developed to have a low basal level and a high ceiling. Even individuals with academic deficiencies will be able to answer items to help generate informative data about their performance. Conversely, the series will challenge high-performing students and help differentiate between gifted and highly gifted individuals. |
| Current norms | The BASI series was standardized during the 2002–03 school year, using a sample matching 2000 U.S. Census data. |
| Group and self administration | Frees up the time that would be taken up administering tests individually. |
| Breadth of scores | Generates standard scores, percentile scores, grade equivalency, age equivalency, percent correct, and performance classification at the skill composite, subtest, and learning standard levels. |
The BASI Comprehensive and Survey versions were standardized on a sample of more than 4,000 students (grades 3–12 and college) matched to the 2000 U.S. Census demographic information. The Survey version also was normed on a sample of 2,000 adults (ages 18–80), matched to the 2000 U.S. Census demographic data. The samples were stratified by race and ethnicity, age, gender, geographical region, and socio-economic status.
Student Summary Report
A one-page report that summarizes the student’s performance by skills composite, subtest and learning objectives.
A parent’s report is included with each student report. The parent’s report graphs percentile scores and includes a space for written comments.
BASI College Report
A free, optional report available for level 4 of the BASI Comprehensive version, the College Report shows how a student’s BASI scores compare to the scores of a census-matched national sample at the student’s grade level, and to two samples of college students:
Percentile rank scores for the BASI subtests (Vocabulary, Reading Comprehension, Spelling, Language Mechanics, Math Computation, and Math Application) and BASI composites (Reading Total, Written Language Total, and Math Total) indicate what percentage of the national sample the student scored as well as or better than. The student’s Growth Scale Value (GSV) scores for these six subtests and three composites are also reported, as are the corresponding GSV scores for the two college comparison samples. In addition to the college students’ average GSV scores, the range of the middle 50% of scores for each sample is shown.
Adult Summary Report
A one-page report that summarizes an adult’s performance by skills composite, subtest, and learning objectives.
Summary Report
Summarizes a student or adult’s performance on the math and/or verbal subtests. This report is available for the entire Survey test or for either the math or verbal subtests.
Collaborative Sample Reports
BASI Collaborative Sample Reports
Q Local™ Scoring and Reporting Desktop Software – Enables you to score assessments, report results, and store and export data on your computer.
Mail-in Scoring Service – Specially designed answer sheets are mailed to Pearson for processing within 24–48 hours of receipt; results returned via regular mail.
BASI™ manual addendum