Computerized Computerized Adaptive Testing Adaptive Testing

SystemSystem

Computerized Computerized Adaptive Testing Adaptive Testing

SystemSystem

Minh H DangMinh H Dang

Table of Content

• Product Description and Intended Use• Change in Binary Search for estimating

level• Technology Used• Database Screenshot• Deliverables• Demo• Conclusion • Questions

• CATS is a desktop application • CATS manages users, question pools, tests,

examinee lists• CATS assesses the user’s knowledge

actively• CATS picks question accordingly

Product Descriptionand Intended Use

• CATS can be used in colleges, high schools and education institutes

• CATS is designed for users with novice computer skill

• CATS is open source

Product Descriptionand Intended Use

(Cont.)

Originalif (AnswerCorrect(mid))

thenlow = mid + 1;

else high = mid – 1;

Variationif (AnswerCorrect(mid)) then

low += 2;else

high -= 2;

Change in Binary Search

for estimating level

0

10

5

Correct

Incorrect

0

10

5

Original

Variation

Technology Used

• Database is MySql• Programming language is C# .Net 2.0• Environment is Visual Studio 2005

Database

• Database is MySql• Programming language is C# .Net 2.0• Environment is Visual Studio 2005

Deliverables

• Authenticates users• Allows users to change his credentials• Protects user’s credential (Hashed SSN,

password)• Uses binary search to select questions

Deliverables (cont.)

• Administrator can- Add accounts- View accounts- Modify accounts

- Delete accounts

Deliverables (cont.)

• Professor can – Create, modify question pools and tests– Add, remove student from examinee list – Monitor result of class’s performance

• Student can– Take tests– View results

Demo

Conclusion

• CATS can manage users, question pools, tests

• CATS use algorithm to estimate user’s level more accurately

• CATS can secures tests

Question ????