Data Structure Visualization Evaluation Aejaaz Kamal Fanye Cui

Motivation l Data Structures hard to visualize using text. AIM -To evaluate the effectiveness

Experiment l Subjects – – students taking the course of CS 2604 Three groups

Experiment (Contd. ) l Procedure – – – Introduction, consent form and demographic form

Experiment (Contd. ) l Tasks and Materials – – l Consent form and demographic

Other Trivia (Feedbacks) l Most People using Visualizations liked them. - Interesting and Informative.

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

Motivation l 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.

DEMOS !! l INSET l Binary Treesome

Experiment l Subjects – – students taking the course of CS 2604 Three groups using different tools: Text, Inset and Binary Treesome

Experiment (Contd. ) l 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)

Experiment (Contd. ) l Tasks and Materials – – l 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

Results l Means Scores :

Analysis l l ANOVA T - test See Data

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

Questions / Discussions ? ?