1. Data Structure Visualization Evaluation Aejaaz Kamal, Fanye Cui, Gowri Santhanam, Priya Shivakumar

2. Motivation Data Structures hard to visualize using text. AIM - To evaluate the effectiveness of AVL tree visualization versus text in teaching. - To compare the two Visualizations among themselves. - To find out if any special patterns exist.

3. DEMOS !! INSET Binary Treesome

4. Experiment Subjects – students taking the course of CS2604 – Three groups using different tools: Text, Inset and Binary Treesome

5. Experiment (Contd.) Procedure – Introduction, consent form and demographic form (5 minutes) – Learning AVL tree using one of tools (15 minutes) – Quiz and post survey form (15 minutes)

6. Experiment (Contd.) Tasks and Materials – Consent form and demographic form – Text material and two visualization tools: inset and binary tree – Question-answering tasks: conceptual questions and procedural questions – Post session survey Dependent Measures – Students’ performance – Students’ satisfaction

7. Results Means Scores :

8. Analysis ANOVA T - test See Data

9. Other Trivia (Feedbacks) Most People using Visualizations liked them. - Interesting and Informative. - Some Inset users thought the animation was fast. The opinions about text were varied: - Some people liked the pictures. - Others termed the text as “boring”.

10. Questions / Discussions ??