Patents
US 10529245 B2: Methods for improving test efficiency and accuracy in a computer adaptive test (CAT)
- Granted
- 2020-01-07
- Filed
- 2014-12-05 application 14562187
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method for test item selection is provided that includes a computer implemented test battery having at least two or more sections with a plurality of test items. An ability estimate is calculated from an earlier section(s) of the at least two or more sections and an initial item and subsequent items for a subsequent section are selected from the plurality of test items based upon the ability estimate(s) from the earlier section(s). Use of a more informative initial ability estimate in the item selection process can improve interim ability estimation accuracy and item selection efficiency while keeping item exposure and item usage rates at acceptable levels.
Source: PVGPATDIS, file of 2026-04-10 (ipg200107.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| ACT CORPORATION 25 patents | Foreign company or organization | Iowa City, IA | ACT, INC. Federal lobbying client FUZZY medium confidence: same name (legal endings aside) and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Lisa Gawlick | Iowa City, IA | 2 | PVGPATDIS, file of 2026-04-10 | |
| Changhui Zhang | Coralville, IA | 4 | PVGPATDIS, file of 2026-04-10 | |
| Nancy Petersen | Solon, IA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Lingyun Gao | Coralville, IA | 2 | PVGPATDIS, file of 2026-04-10 | |
| Wugen Dai | Iowa City, IA | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G09B | Educational or demonstration appliances; appliances for teaching, or communicating with, the blind, deaf or mute; models; planetaria; globes; maps; diagrams | G09B7/00 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2024-06-14 | Security interest Security interest Security interest | ACT EDUCATION CORP. signed 2024-06-13 | TRUIST BANK ATLANTA, GA | 67732/278 | ECORSEXC, file of 2026-09-25 |
| 2024-06-13 | Security interest Security interest Security interest | ACT EDUCATION CORP. signed 2024-05-01 | TRUIST BANK ATLANTA, GA | 67713/790 | ECORSEXC, file of 2026-09-25 |
| 2024-06-11 | Name change Change of name | IMPACT ASSET CORP. signed 2024-05-30 | ACT EDUCATION CORP. IOWA CITY, IA | 67683/808 | ECORSEXC, file of 2026-09-25 |
| 2024-05-08 | Assignment Assignment of assignor's interest | ACT, INC. signed 2024-05-01 | IMPACT ASSET CORP. IOWA CITY, IA | 67352/636 | ECORSEXC, file of 2026-09-25 |
| 2015-01-21 | Assignment Assignment of assignor's interest | DAI, WUGEN signed 2014-12-17 GAO, LINGYUN signed 2014-12-17 GAWLICK, LISA signed 2014-12-17 PETERSEN, NANCY signed 2014-12-17 ZHANG, CHANGHUI signed 2014-12-17 | ACT, INC. IOWA CITY, IA | 34768/673 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.