1. Raymond Clark, Angel Lee, Eric Rackear
Checkpoint Extension
Raymond Clark, Angel Lee, Eric Rackear

2. Problem to be addressed
Users find it cumbersome to navigate back to previously seen information on extensive/infinite scroll web pages
Develop extension allowing users to quickly tag and get back to information.

3. Current system
System closest to solving the problem is Scroll To Top Button
Essentially the same thing as pressing “home” or “end” keys
Does not give exact scroll locations at specific page points

4. Our system Bright Green Checkpoints made at user’s discretion
Help menu that clearly tells what each shortcut key does
Can add, remove, and cycle through checkpoints

5. User Study Conditions 16 participants 18-24 years old
have at least moderate experience with computers and web-browsing
use Google Chrome during the study

6. Results & Analysis
To test if users would prefer our system more than the current one, we used the System Usability Scale from 0-100
P-value: is greater than 0.10, meaning there is no evidence against the null hypothesis. We cannot reject the null hypothesis.
Current System
Our System
mean
82.03
84.21
standard deviation
15.632
14.631

7. Results & Analysis
To test if users would be able to retrieve previous information faster using our system, we used a scale from 1-5, 1 being the slowest, 5 being the fastest
P-value: is between 0.05 and 0.1, meaning there is weak evidence against the null hypothesis. We cannot reject the null hypothesis.
Current System
Our System
mean
3.69
4.31
standard deviation
1.25
1.078

8. Conclusions
Based on the means and standard deviations for both hypotheses, it is too close to tell whether one system rates higher than the other. Furthermore, at this time, we are unable to reject either of the null hypotheses.
Overall, with further study, we might be able to see a better correlation between increased user satisfaction and the use of our system.