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To test the effectiveness of the Marin Machine, we designed an experiment with volunteers from an on-campus dance crew, Rice Crew. The participants all had varying degrees of dance skill.
All participants were taught a short portion of a choreography (15 seconds). Five judges then rated each dancer on a scale from 1 - 10.
Panel of Judges
Panel of Judges
Judge 1 was a member of the club who has experience teaching and correcting choreography
- knows the participant
- knows the choreography
Judges 2 and 3 were members of the club that had not learned the choreography
- knows the participant
- does NOT know the choreography
Judges 4 and 5 were outsiders
- does NOT know the participant or the choreography
We hoped that having these differences in the judging panel would help balance out any possible biases each judge may have.
The participants were then randomly split up into two groups. One group would practice the choreography on their own and one would practice using the Marin Machine. We set up 2 half-hour time slots with each participant to practice. All participants showed up to their scheduled time slot except for one individual in the control group.
Participants were judged again after having their scheduled practice times. The second judging occurred roughly 4 days after the initial. Scores were recorded for each individual.
Statistical Analysis
Statistical Analysis
Ho : There is no significant difference between using the Marin Machine and correcting on your own
HA: There is a significant difference between using the Marin Machine and correcting on your own
Used a 2-sample z-test to determine statistical significance
Calculated Z-score: 0.0566
P-value: 0.477
Our p-value > 0.05, therefore we cannot reject our null hypothesis. Our results are not statistically significant.
Future Studies
Future Studies
At the present, we cannot be confident that the Marin Machine is more effective than just practicing and correcting on your own.
How can we improve?
- More features, like the ability to sync with a video and scroll to different parts
- More mobility; each move is very static. Dancing is much more fluid.
- Finding a way to track more complicated movements
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