Group Assessment and Diagnostic Evaluation
Group Reading Assessment and Diagnostic Evaluation (GRADE)
|Disaggregated Reliability and Validity Data|
|Administration & Scoring Time||46-95 Minutes|
|Scoring Key||Computer Scored|
|Benchmarks / Norms||Yes|
|Cost||Technology, Human Resources, and Accommodations for Special Needs||Service and Support||Purpose and Other Implementation Information||Usage and Reporting|
GRADE costs $129.95 - $323.50 (depending on the grade level) for the complete kit, which includes: 30 test booklets, Forms A and B, and the Administration, Scoring and Interpretation Manual.
Additional test forms can be purchased for $32.50 for a package of 10. Technical manuals are $35.50 and protocols are $3.25 per student.
There are three software options: (1) hand entry scoring and reporting software is $411.95; (2) scanning, scoring, and reporting software is $2,341.95; and (3) scanning with barcode scoring and reporting software is $2,695.95
Computer and Internet access are required for full use of product services.
Testers will require less than 1 hour of training to learn to administer the test, or 1 to 4 hours to learn to administer and interpret the test.
Paraprofessionals can administer the test.
Field-tested training manuals are included and should provide all implementation information.
Ongoing technical support is available.
The GRADE is a norm-referenced, standards-based reading assessment. It is intended for use with students in pre-kindergarten through young adult post-secondary students. It includes 11 test levels, each of which has two parallel forms (Form A and Form B). Every level contains multiple sections, or subtests.
The GRADE can be used to observe progress and track growth of an individual student or group of students (an entire class, building, or district) from form to form or from year to year.
GRADE can be administered individually or to a group. Administration usually takes 45-90 minutes, although the test is untimed. Scoring requires 1-5 minutes depending on whether scoring software is used or not.
Available scores include: raw, standard, percentile, grade-equivalent, stanines, normal curve equivalents, subscale/subtest, composite, and error analysis.
|Classification Accuracy in Predicting Proficiency on the TerraNova Reading Subtest|
|False Positive Rate||0.08|
|False Negative Rate||0.15|
|Positive Predictive Power||0.73|
|Negative Predictive Power||0.96|
|Overall Classification Rate||0.91|
|At 90% Sensitivity, Specificity equals||0.84|
|At 80% Sensitivity, Specificity equals||0.93|
|At 70% Sensitivity, Specificity equals||0.95|
Description of study sample:
- Number of States: 37
- Size: 260
- 48.7% Male
- 51.3% Female
- 90% White, Non-Hispanic
- 10% Black, Non-Hispanic
|Type of Reliability||Age or Grade||n (range)||Coefficient||SEM||Information (including normative data)/ Subjects|
|Internal Reliability- Total Test Alpha and Split Half Reliabilities||4-18||305-634||0.91-0.99||0.96||3.4-3.7|
|Alternate Form Reliability||4-18||
|Type of Validity||Age or Grade||Test or Criterion||n (range)||Coefficient (if applicable)|
|Criterion Related||Grade 1-6, Middle and High School||ITBS, CAT, Gates-MacGinitie||617 (119-313)||0.69-0.90||0.83|
|Predictive||Grade 2,4, 6||TerraNova||260||0.76-0.86||0.77|