Fundamentals of HCI

1. ColorShoot
Fundamentals of HCI
Maarten Rimaux
Tom De Groote
Evelien Schellekens

2. Game explanation
Iterations
Conclusion

3. ColorShoot

4. Game explanation
Iterations
Conclusion

5. Paper prototype

6. #1 Think aloud study - participants
● 5 participants
● Friends and family
19 years
old
19 years
old
12 years
old
12 years
old
22 years
old

7. #1 Think aloud study - questions
1. What is the current high score?
2. Beat this score with 1 point.
3. What would you do to stop the game? (after achieving the high score)
4. What would you do when seeing this window? (notification of getting high
score)

8. #1 Think aloud study - results
→ Explanation disappears too quickly
→ Explanation is confusing
→ No home button when game over

9. Digital prototype

10. Improved introduction screen

11. #2 Think aloud study - participants
● 6 participants
● Friends and family
19 years
old
19 years
old
12 years
old
22 years
old
12 years
old
10 years
old

12. #2 Think aloud study - results
→ Explanation is not clear enough
→ More colors and more parachutes to make it more difficult (boring)
→ Missing score/high score on game over

13. Improved introduction screen

14. Score/high score

15. More colors, parachutes and translation

16. #3 Usability testing - participants
● 29 children between 10 and 11 years old
● Slightly younger than our target group
- high school examination period
● Not a strong effect on the results

17. #3 Usability testing - A/B testing
GROUP 1
GROUP 2
COLORED
PARACHUTE
COLORED WORD
COLORED WORD
COLORED
PARACHUTE
SURVEY
SURVEY
Variables:
● Spawn time of parachute
● shoot time of parachute
● Number of parachutes on enter
● Number of parachutes on shoot
● Color, word of color, case
● Gravity and velocity

18. #3 Usability testing - cases
COLORED PARACHUTE - CASEA COLORED WORD - CASEB

19. #3 Usability testing - results
Average shoot time
colored parachute
colored word
Player
Time (s)

20. #3 Usability testing - results no outliers
colored parachute
colored word
Average shoot time (no outliers)
Player
Time (s)

21. #3 Usability testing - results one-way anova
H0
: μcolored parachute
= μcolored word
H1
: averages are not equal
ɑ = 0.05
State decision rule: If F > 4.2597 reject H0
F = 0.0065
⇒ No significant difference

22. girl boy
What version of the game was the easiest?
(Wat vind je de gemakkelijkste versie van het spelletje?)
colored parachute colored word no preference

23. How fun was the game?
(hoe leuk vond je het spelletje)
Not fun at all Not fun a bit of fun Fun Lots of fun
girl boy

24. girl boy
Would you recommend the game to your friends?
(zou je het spelletje aanraden aan je vrienden?)
No Maybe Yes

25. girl boy
What did you think of the game?
(Wat vond je van het spelletje?)
too hard good too easy

27. Game explanation
Iterations
Conclusion

28. Conclusions
● Every iteration gave new information
○ introduction screen
○ game interaction
○ increasing difficulty
● Children of age 10 seemed to like the game
● Colored word:
○ felt more difficult
○ no significant difference in response time

29. Questions?